Ihsan Ikhtiarudin - Academia.edu (original) (raw)

Papers by Ihsan Ikhtiarudin

Research paper thumbnail of Microwave-Assisted Synthesis, in Silico Studies and in Vivo Evaluation for Antidiabetic Activity of New Brominated Pyrazoline Analogues

Introduction: Pyrazolines have played crucial role in the drug discovery researches and have been... more Introduction: Pyrazolines have played crucial role in the drug discovery researches and have been used widely as an important pharmacophores or intermediet for synthesis of bioactive compounds. Objective: The aim of this work is to explore the potential of new brominated pyrazoline analogues as antidiabetic. Methods: Synthesis of brominated pyrazoline analogues have been conducted under microwave irradiation, in silico studies was performed using AutoDock 1.5.4 software packages and Nano scale MD Program 2.9, and the animal used in the in vivo evaluation is male albino mices ( Mus musculus L.). Result: The i n silico studies for antidiabetic activity showed that compound 3a is the most active compound and furthermore it can be developed as new active agents for antidiabetic. The in vivo evaluation showed that compound 3a have a good ability to increase the percentage of change in blood glucose level and weight loss prevention, decreasing of the drinking water and also decreasing of...

Research paper thumbnail of 5-(4-Fluorophenyl)-3-(naphthalen-1-yl)-1-phenyl-1H-pyrazole

Molbank

A new fluorinated pyrazole, 5-(4-fluorophenyl)-3-(naphthalen-1-yl)-1-phenyl-1H-pyrazole was succe... more A new fluorinated pyrazole, 5-(4-fluorophenyl)-3-(naphthalen-1-yl)-1-phenyl-1H-pyrazole was successfully synthesized via a two-step reaction. Firstly, the synthesis of pyrazoline was performed via one-pot three-component reaction under microwave irradiation. Secondly, the synthesis of pyrazole was performed via oxidative aromatization of pyrazoline under conventional heating. The structure of the synthesized compound was confirmed by spectroscopic analysis, including FT-IR, HR-MS, 1D and 2D NMR analysis. Then, molecular docking study showed that the binding affinity of the synthesized compound to human estrogen alpha receptor (ERα) was close to 4-OHT as a native ligand.

Research paper thumbnail of Microwave-assisted synthesis and antioxidant activity of a hydrazone, (E)-1-(4-methoxybenzylidene)-2- phenylhydrazine

THE 2ND SCIENCE AND MATHEMATICS INTERNATIONAL CONFERENCE (SMIC 2020): Transforming Research and Education of Science and Mathematics in the Digital Age

Hydrazones have been reported for the various interesting biological activities, such as antioxid... more Hydrazones have been reported for the various interesting biological activities, such as antioxidant, antitumor, and anticancer activities. In this work, a methoxy substituted hydrazone, (E)-1-(4-methoxybenzylidene)-2phenylhydrazine (compound 3) has been synthesized under microwave irradiation and its antioxidant activity evaluated using DPPH method. Structure of the synthesized compound was confirmed based on the spectroscopic data included UV, FT-IR, MS, 1D and 2D NMR. Based on DPPH assay, the synthesized compound exhibited very strong antioxidant activity with IC50 value of 9.5 ± 1.1 µg/ml, it is close with IC50 value of ascorbic acid which is used as antioxidant standard.

Research paper thumbnail of Microwave-assisted synthesis of a fluorinated pyrazoline, in silico study and in vitro cytotoxic evaluation against HeLa cell line

THE 2ND SCIENCE AND MATHEMATICS INTERNATIONAL CONFERENCE (SMIC 2020): Transforming Research and Education of Science and Mathematics in the Digital Age

Pyrazoline analogues have been reported with some significant biological activities, such as anti... more Pyrazoline analogues have been reported with some significant biological activities, such as anticancer, antidiabetic and antimalarial. In this work, a fluorinated pyrazoline analogue, 5-(4-fluorophenyl)-3-(naphthalen-1-yl)-4,5dihydro-1H-pyrazole (Compound 3) has been synthesized under microwave irradiation. The structure of synthesized compound was confirmed based on the spectroscopic data i.e. UV, FT-IR, GCMS, and 1 H NMR. Based on the in silico study, the synthesized compound possessed a potent inhibitory activity against human thymidilate synthase (hTS) (PDB ID 4E28). The docking results of the pyrazoline analogue to this enzyme showed the binding free energy of-4.4397 kcal/mol and it is lower than 5-fluorouracil (5-FU) used as reference for anticancer drug (-2.2774 kcal/mol). In addition, the result of in vitro cytotoxic evaluation showed that the synthesized compound exhibited a strong cytotoxic activity against HeLa cell line with IC50 value of 27.56 µg/ml. The result of both in silico and in vitro evaluations suggests that the compound 3 might be a promising agent for cervical cancer treatment.

Research paper thumbnail of Insight on the In Silico Study and Biological Activity Assay of Chalcone-Based 1, 5-Benzothiazepines as Potential Inhibitor for Breast Cancer MCF7

Chiang Mai University Journal of Natural Sciences

In silico study was performed to twelve 1,5-benzothiazepine chalcone derivatives with the protein... more In silico study was performed to twelve 1,5-benzothiazepine chalcone derivatives with the protein target from the crystallographic structure modeling of the enzyme tyrosine kinase. The objective of this study is to execute and to estimate the biological activity of chalcone-based 1,5-benzothiazepine derivatives as potential inhibitors for breast cancer MCF7. To get insight into potential anticancer activities, molecular docking, molecular dynamic and ADME prediction were performed. Docking results reported that compound MA9 with binding free energy of -11.2 kcal / mol can interact through hydrogen bonds with amino acids Cys788 on 1T46 protein active site. In addition, the lowest binding free energy conformation indicated its stability during molecular dynamic simulation. MA9 is also shown to have drug likeness properties based on ADME prediction. In order to evaluate the modeling outcomes, MTT assay were performed for some of the most and least promising benzologs (i.e., MA1, MA6, M...

Research paper thumbnail of A Computational Approach to Drug Discovery: Search for Chalcone Analogues as the Potential Candidates for Anti Colorectal Cancer (HT29)

Walailak Journal of Science and Technology (WJST)

A series of 46 chalcone derivative compounds with their inhibitory activity against colorectal ca... more A series of 46 chalcone derivative compounds with their inhibitory activity against colorectal cancer were used as data set for developing the quantitative structure activity relationship (QSAR). 2D QSAR and 3D QSAR models have been developed with high predictive ability with r2 and r2(CV) of 0.81 and 0.78, respectively. Results from the 2D and 3D quantitative structure activity relationship models indicate that electrostatic parameter enhanced bioactivity of the chalcone derivatives. Further, docking and molecular dynamic simulation was performed using 2wft PDB ID as the molecular target of colon cancer. Based on the docking, molecular dynamic, and biological assay, it is confirmed that compound 2, cpd 4, cpd 21, cpd 23, cpd 27, cpd 32, cpd 38, and cpd 39 show better activity (active) against colorectal cancer cells.

Research paper thumbnail of Isolasi dan Uji Aktivitas Antioksidan Ekstrak Metanol Dari Buah Senduduk Bulu (Clidemia hirta (L.) D. Don)

Pharmacon: Jurnal Farmasi Indonesia

A study on isolation and antioxidant activity of secondary metabolit of methanol extract of fruit... more A study on isolation and antioxidant activity of secondary metabolit of methanol extract of fruit of Senduduk Bulu (Clidemia hirta (L.) D. Don) has been carried out. Senduduk bulu is used for folk medicine to many diseases. Flavonoid and phenolic has been reported to its activity as antioxidant. The aim of this research was to find antioxidant compound and antioxidant activity of this fruit. Isolation works were conducted using Vacuum Liquid Chromatography and Column Chromatography method. Antioxidant activity was determined using DPPH free radical scavenging methods. The isolation works afforded 10 mg of pure compound CHP1 which was obtained as white crystal, with its melting point of 165–167ºC, soluble in chloroform and slightly soluble in methanol. This compound gave positive reaction with Liebermann-Burchard (LB) reagent and concluded as terpenoid. Based on it UV spectrum, this compound showed a λ max of 316 nm. Its FT-IR spectrum showed appearence of some functional groups of O...

Research paper thumbnail of Studi In Silico, Sintesis, dan Uji Sitotoksik Senyawa P-Metoksi Kalkon terhadap Sel Kanker Payudara MCF-7

Jurnal Sains Farmasi & Klinis

Kalkon (1,3-difenil-2-propene-1-on) adalah salah satu senyawa golongan flavonoid yang memiliki be... more Kalkon (1,3-difenil-2-propene-1-on) adalah salah satu senyawa golongan flavonoid yang memiliki beragam aktivitas biologis diantaranya sebagai antikanker. Penelitian ini bertujuan untuk mengetahui efek sitotoksik analog kalkon (E)-3-(4-metoksifenil)-1-fenilprop-2-en-1-on dengan menggunakan teknik komputerisasi (docking), senyawa analog kalkon tersebut disintesis menggunakan reaksi kondensasi Claisen-Schmidt dengan katalis basa secara metode iradiasi gelombang mikro. Studi in silico ini dilakukan antara senyawa kalkon dengan protein dengan kode PDB ID P521 dengan menggunakan program AutoDock Vina, sedangkan uji aktivitas sitotoksik senyawa kalkon dilakukan terhadap sel kanker payudara MCF-7 menggunakan metode WST-8. Berdasarkan hasil docking, senyawa kalkon (E)-3-(4-metoksifenil)-1-fenilprop-2-en-1-on memiliki potensi sebagai penghambat aktif terhadap sel kanker payudara MCF-7 ditandai dengan senyawa ini memiliki nilai energi bebas ikatan yang lebih kecil dibandingkan doxorubicin se...

Research paper thumbnail of Microwave-assisted synthesis and antioxidant activity of an imine, (E)-1-(3-bromobenzylidene)-2-phenylhydrazine

PROCEEDINGS OF THE 5TH INTERNATIONAL SYMPOSIUM ON CURRENT PROGRESS IN MATHEMATICS AND SCIENCES (ISCPMS2019)

Several Imines (Schiff bases) have been reported for their significant biological activity. In th... more Several Imines (Schiff bases) have been reported for their significant biological activity. In this work, an imine, (E)-1-(3-bromobenzylidene)-2-phenylhydrazine has been synthesized under microwave irradiation and evaluated for its antioxidant activity by DPPH assay. The structure of synthesized compound was confirmed based on the spectroscopic data included UV-Vis, FT-IR, MS, 1D and 2D NMR. Based on the DPPH assay, the synthesized compound possessed a strong antioxidant activity with IC50 value of 62 µ g/ml.

Research paper thumbnail of Design, molecular docking study, synthesis and in vivo evaluation of some bromonaphthyl pyrazolines as new anti-inflammatory agents

Empowering Science and Mathematics for Global Competitiveness

Research paper thumbnail of Microwave-assisted synthesis of 1-(4-hydroxyphenyl)-3-(4-methoxyphenyl)prop-2-en-1-one and its activities as an antioxidant, sunscreen, and antibacterial

Jurnal Kimia Sains dan Aplikasi

Chalcone analogs have been reported to have a variety of exciting biological activities, such as ... more Chalcone analogs have been reported to have a variety of exciting biological activities, such as anticancer, anti-inflammatory, antioxidant, photoprotective, antibacterial, and antidiabetic activities. Therefore, analogs of these compounds have been widely synthesized as intermediate compounds or target molecules in the discovery of bioactive compounds to be applied in the pharmaceutical field. The purpose of this study is to synthesize chalcone analog compounds (E)-1-(4-hydroxyphenyl)-3-(4-methoxyphenyl) prop-2-en-1-on with the microwave irradiation method and explore some of the biological activities of these compounds, including testing the antioxidant activity by 1,1-diphenyl-2-picrylhydrazyl (DPPH) method, in vitro sunscreen activity by microplate method, and antibacterial activity by disk diffusion method. DPPH test results indicate that the compound has weak antioxidant activity, with an IC50 value of 300.43 µg/mL. However, the compound showed excellent potential as a UV B an...

Research paper thumbnail of Sintesis Dan Uji Toksisitas Senyawa Analog Kalkon 3’-METOKSIASETOFENON Dengan 2-HIDROKSIBENZALDEHID

Photon: Jurnal Sain dan Kesehatan

Kalkon merupakan salah satu metabolit sekunder golongan flavonoid yang sangat berpotensi untuk di... more Kalkon merupakan salah satu metabolit sekunder golongan flavonoid yang sangat berpotensi untuk dikembangkan. Kalkon telah dilaporkan memiliki aktivitas biologis seperti antimikroba, antitumor, antioksidan, antiinflamasi, antimalaria, dan antikanker. Senyawa (E)-3-(2-hidroksifenil)-1-(3’-metoksifenil)prop-2-en-1-on disintesis dengan metode iradiasi gelombang mikro dan menggunakan katalis basa KOH. Struktur senyawa kalkon dikarakterisasi berdasarkan interpretasi data spektroskopi UV, IR, 1H-NMR, dan MS. Uji toksisitas senyawa kalkon ditentukan dengan metode Brine Shrimp Lethality Test dan menunjukkan aktivitas dengan nilai LC50 yaitu 186,48 μg/mL. Senyawa ini menunjukkan aktivitas toksisitas yang baik karena nilai LC50 < 200 μg/mL.

Research paper thumbnail of 3-(3,4-Dimethoxyphenyl)-5-(2-fluorophenyl)-1-phenyl-4,5-dihydro-1H-pyrazole

Molbank

A new analogue of fluorinated pyrazoline (compound 1) has been synthesized via one-pot three-comp... more A new analogue of fluorinated pyrazoline (compound 1) has been synthesized via one-pot three-component reaction under microwave irradiation. The structure of compound 1 has been established by spectroscopy analysis, including UV, FT-IR, HRMS, 1H and 13C NMR spectroscopy. Based on the in silico studies, this compound showed a good potential as an inhibitor for dengue virus type 2 (DEN2) NS2B/NS3 serine protease and can be used as a reference in the next design of an antidengue virus.

Research paper thumbnail of Synthesis and in Silico Studies of a Benzenesulfonyl Curcumin Analogue as a New Anti Dengue Virus Type 2 (DEN2) NS2B/NS3

Indonesian Journal of Pharmacy

Curcumin has been reported can interact with multiple molecular targets involved in a large varie... more Curcumin has been reported can interact with multiple molecular targets involved in a large variety of diseases. Accumulated evidence indicated curcumin plays an inhibitory role against infection of numerous viruses. Some studies have been reported that curcumin can interfere the infection processes of dengue virus. In this work, a benzenesulfonyl curcumin, (3E,5E)-3,5-bis(4-methoxybenzylidene)-1-(phenylsulfonyl) piperidin-4-one (compound 2) has been synthesized by two steps of reactions. The structure of compound 2 has been established based on the interpretation of spectral data include UV, FT-IR, MS/MS, 1 H and 13 C NMR. Then, the in silico studies have been also performed to predict the potency of compound 2 as inhibitor for dengue virus Type 2 (DEN 2) NS2B/NS3 protease. The in silico studies showed that compound 2 has hydrogen bonding with His51 residue, and amazingly that the other catalytic triad such as Asp75 and Ser135 were also showed interactions with the ligand. It is presumably that this compound showed very good activity against DEN2 and can be developed as a new inhibitor for dengue viruses.

Research paper thumbnail of Sintesis dan Potensi Aktivitas Tabir Surya Senyawa Analog Kalkon Turunan 3’-Hidroksiasetofenon dan 4-Metoksibenzaldehid

Photon: Jurnal Sain dan Kesehatan

Chalcone analogues have attracted the attention of researchers due to their various biological ac... more Chalcone analogues have attracted the attention of researchers due to their various biological activities. In this study, a chalcone analogue, (E)-1-(3-hydroxyphenyl)-3-(4-methoxyphenyl)prop-2-en-1-on has been synthesized under microwave irradiation and its sunscreen activity has been evaluated by in vitro assay using 96-well microplate reader. Based on the in vitro assay, at concentration of 100-500 µg/ml, the compound showed potential sunscreen activity with %Te value of 5.49 – 0.04 % (extra protection – sunblock), %Tp value of 0.51-0.05 % (sunblock) and SPF value of 18.20 – 32.91 (ultra protection). The assay result showed that the (E)-1-(3-hydroxyphenyl)-3-(4-methoxyphenyl)prop-2-en-1-on has a potency to be developed as active ingredient in sunscreen product.

Research paper thumbnail of The Influences of Power Variations on Selectivity of Synthesis Reaction of 2’-HYDROXYCHALCONE Analogue Under Microwave Irradiation

Molekul, Nov 28, 2016

Beberapa analog 2'-hidroksicalkon telah digunakan secara luas sebagai senyawa intermediet untuk m... more Beberapa analog 2'-hidroksicalkon telah digunakan secara luas sebagai senyawa intermediet untuk mensintesis berbagai macam senyawa heterosiklik, seperti flavanon, flavanonol, flavon, flavonol dan lain sebagainya. Senyawa-senyawa heterosiklik tersebut diketahui mempunyai beragam bioaktivitas yang menarik dalam bidang kimia medisinal dan juga berpotensi untuk diaplikasikan dalam bidang kimia material termasuk dalam bidang industri. Oleh karena itu, analog 2'hidroksicalkon sering disintesis oleh para peneliti sebagai senyawa intermediet, baik di dalam riset yang berhubungan dengan penemuan obat maupun kimia material. Penelitian ini bertujuan untuk mengamati pengaruh variasi daya iradiasi gelombang mikro terhadap selektivitas reaksi sintesis analog 2'-hidroksicalkon. Variasi daya yang digunakan dalam penelitian ini adalah 100, 180, 300 dan 450 W dengan menggunakan microwave rumahan. Berdasarkan hasil penelitian, diperoleh kesimpulan bahwa variasi daya iradiasi gelombang mikro terbukti dapat mempengaruhi selektivitas reaksi sintesis analog 2'-hidroksicalkon. Dalam hal ini, daya iradiasi yang paling sesuai untuk digunakan pada reaksi sintesis tersebut adalah 180 W. Kata kunci: 2'-hidroksicalkon, iradiasi gelombang mikro, kondensasi aldol.

Research paper thumbnail of Microwave-Assisted Synthesis, in Silico Studies and in Vivo Evaluation for Antidiabetic Activity of New Brominated Pyrazoline Analogues

Introduction: Pyrazolines have played crucial role in the drug discovery researches and have been... more Introduction: Pyrazolines have played crucial role in the drug discovery researches and have been used widely as an important pharmacophores or intermediet for synthesis of bioactive compounds. Objective: The aim of this work is to explore the potential of new brominated pyrazoline analogues as antidiabetic. Methods: Synthesis of brominated pyrazoline analogues have been conducted under microwave irradiation, in silico studies was performed using AutoDock 1.5.4 software packages and Nano scale MD Program 2.9, and the animal used in the in vivo evaluation is male albino mices ( Mus musculus L.). Result: The i n silico studies for antidiabetic activity showed that compound 3a is the most active compound and furthermore it can be developed as new active agents for antidiabetic. The in vivo evaluation showed that compound 3a have a good ability to increase the percentage of change in blood glucose level and weight loss prevention, decreasing of the drinking water and also decreasing of...

Research paper thumbnail of 5-(4-Fluorophenyl)-3-(naphthalen-1-yl)-1-phenyl-1H-pyrazole

Molbank

A new fluorinated pyrazole, 5-(4-fluorophenyl)-3-(naphthalen-1-yl)-1-phenyl-1H-pyrazole was succe... more A new fluorinated pyrazole, 5-(4-fluorophenyl)-3-(naphthalen-1-yl)-1-phenyl-1H-pyrazole was successfully synthesized via a two-step reaction. Firstly, the synthesis of pyrazoline was performed via one-pot three-component reaction under microwave irradiation. Secondly, the synthesis of pyrazole was performed via oxidative aromatization of pyrazoline under conventional heating. The structure of the synthesized compound was confirmed by spectroscopic analysis, including FT-IR, HR-MS, 1D and 2D NMR analysis. Then, molecular docking study showed that the binding affinity of the synthesized compound to human estrogen alpha receptor (ERα) was close to 4-OHT as a native ligand.

Research paper thumbnail of Microwave-assisted synthesis and antioxidant activity of a hydrazone, (E)-1-(4-methoxybenzylidene)-2- phenylhydrazine

THE 2ND SCIENCE AND MATHEMATICS INTERNATIONAL CONFERENCE (SMIC 2020): Transforming Research and Education of Science and Mathematics in the Digital Age

Hydrazones have been reported for the various interesting biological activities, such as antioxid... more Hydrazones have been reported for the various interesting biological activities, such as antioxidant, antitumor, and anticancer activities. In this work, a methoxy substituted hydrazone, (E)-1-(4-methoxybenzylidene)-2phenylhydrazine (compound 3) has been synthesized under microwave irradiation and its antioxidant activity evaluated using DPPH method. Structure of the synthesized compound was confirmed based on the spectroscopic data included UV, FT-IR, MS, 1D and 2D NMR. Based on DPPH assay, the synthesized compound exhibited very strong antioxidant activity with IC50 value of 9.5 ± 1.1 µg/ml, it is close with IC50 value of ascorbic acid which is used as antioxidant standard.

Research paper thumbnail of Microwave-assisted synthesis of a fluorinated pyrazoline, in silico study and in vitro cytotoxic evaluation against HeLa cell line

THE 2ND SCIENCE AND MATHEMATICS INTERNATIONAL CONFERENCE (SMIC 2020): Transforming Research and Education of Science and Mathematics in the Digital Age

Pyrazoline analogues have been reported with some significant biological activities, such as anti... more Pyrazoline analogues have been reported with some significant biological activities, such as anticancer, antidiabetic and antimalarial. In this work, a fluorinated pyrazoline analogue, 5-(4-fluorophenyl)-3-(naphthalen-1-yl)-4,5dihydro-1H-pyrazole (Compound 3) has been synthesized under microwave irradiation. The structure of synthesized compound was confirmed based on the spectroscopic data i.e. UV, FT-IR, GCMS, and 1 H NMR. Based on the in silico study, the synthesized compound possessed a potent inhibitory activity against human thymidilate synthase (hTS) (PDB ID 4E28). The docking results of the pyrazoline analogue to this enzyme showed the binding free energy of-4.4397 kcal/mol and it is lower than 5-fluorouracil (5-FU) used as reference for anticancer drug (-2.2774 kcal/mol). In addition, the result of in vitro cytotoxic evaluation showed that the synthesized compound exhibited a strong cytotoxic activity against HeLa cell line with IC50 value of 27.56 µg/ml. The result of both in silico and in vitro evaluations suggests that the compound 3 might be a promising agent for cervical cancer treatment.

Research paper thumbnail of Insight on the In Silico Study and Biological Activity Assay of Chalcone-Based 1, 5-Benzothiazepines as Potential Inhibitor for Breast Cancer MCF7

Chiang Mai University Journal of Natural Sciences

In silico study was performed to twelve 1,5-benzothiazepine chalcone derivatives with the protein... more In silico study was performed to twelve 1,5-benzothiazepine chalcone derivatives with the protein target from the crystallographic structure modeling of the enzyme tyrosine kinase. The objective of this study is to execute and to estimate the biological activity of chalcone-based 1,5-benzothiazepine derivatives as potential inhibitors for breast cancer MCF7. To get insight into potential anticancer activities, molecular docking, molecular dynamic and ADME prediction were performed. Docking results reported that compound MA9 with binding free energy of -11.2 kcal / mol can interact through hydrogen bonds with amino acids Cys788 on 1T46 protein active site. In addition, the lowest binding free energy conformation indicated its stability during molecular dynamic simulation. MA9 is also shown to have drug likeness properties based on ADME prediction. In order to evaluate the modeling outcomes, MTT assay were performed for some of the most and least promising benzologs (i.e., MA1, MA6, M...

Research paper thumbnail of A Computational Approach to Drug Discovery: Search for Chalcone Analogues as the Potential Candidates for Anti Colorectal Cancer (HT29)

Walailak Journal of Science and Technology (WJST)

A series of 46 chalcone derivative compounds with their inhibitory activity against colorectal ca... more A series of 46 chalcone derivative compounds with their inhibitory activity against colorectal cancer were used as data set for developing the quantitative structure activity relationship (QSAR). 2D QSAR and 3D QSAR models have been developed with high predictive ability with r2 and r2(CV) of 0.81 and 0.78, respectively. Results from the 2D and 3D quantitative structure activity relationship models indicate that electrostatic parameter enhanced bioactivity of the chalcone derivatives. Further, docking and molecular dynamic simulation was performed using 2wft PDB ID as the molecular target of colon cancer. Based on the docking, molecular dynamic, and biological assay, it is confirmed that compound 2, cpd 4, cpd 21, cpd 23, cpd 27, cpd 32, cpd 38, and cpd 39 show better activity (active) against colorectal cancer cells.

Research paper thumbnail of Isolasi dan Uji Aktivitas Antioksidan Ekstrak Metanol Dari Buah Senduduk Bulu (Clidemia hirta (L.) D. Don)

Pharmacon: Jurnal Farmasi Indonesia

A study on isolation and antioxidant activity of secondary metabolit of methanol extract of fruit... more A study on isolation and antioxidant activity of secondary metabolit of methanol extract of fruit of Senduduk Bulu (Clidemia hirta (L.) D. Don) has been carried out. Senduduk bulu is used for folk medicine to many diseases. Flavonoid and phenolic has been reported to its activity as antioxidant. The aim of this research was to find antioxidant compound and antioxidant activity of this fruit. Isolation works were conducted using Vacuum Liquid Chromatography and Column Chromatography method. Antioxidant activity was determined using DPPH free radical scavenging methods. The isolation works afforded 10 mg of pure compound CHP1 which was obtained as white crystal, with its melting point of 165–167ºC, soluble in chloroform and slightly soluble in methanol. This compound gave positive reaction with Liebermann-Burchard (LB) reagent and concluded as terpenoid. Based on it UV spectrum, this compound showed a λ max of 316 nm. Its FT-IR spectrum showed appearence of some functional groups of O...

Research paper thumbnail of Studi In Silico, Sintesis, dan Uji Sitotoksik Senyawa P-Metoksi Kalkon terhadap Sel Kanker Payudara MCF-7

Jurnal Sains Farmasi & Klinis

Kalkon (1,3-difenil-2-propene-1-on) adalah salah satu senyawa golongan flavonoid yang memiliki be... more Kalkon (1,3-difenil-2-propene-1-on) adalah salah satu senyawa golongan flavonoid yang memiliki beragam aktivitas biologis diantaranya sebagai antikanker. Penelitian ini bertujuan untuk mengetahui efek sitotoksik analog kalkon (E)-3-(4-metoksifenil)-1-fenilprop-2-en-1-on dengan menggunakan teknik komputerisasi (docking), senyawa analog kalkon tersebut disintesis menggunakan reaksi kondensasi Claisen-Schmidt dengan katalis basa secara metode iradiasi gelombang mikro. Studi in silico ini dilakukan antara senyawa kalkon dengan protein dengan kode PDB ID P521 dengan menggunakan program AutoDock Vina, sedangkan uji aktivitas sitotoksik senyawa kalkon dilakukan terhadap sel kanker payudara MCF-7 menggunakan metode WST-8. Berdasarkan hasil docking, senyawa kalkon (E)-3-(4-metoksifenil)-1-fenilprop-2-en-1-on memiliki potensi sebagai penghambat aktif terhadap sel kanker payudara MCF-7 ditandai dengan senyawa ini memiliki nilai energi bebas ikatan yang lebih kecil dibandingkan doxorubicin se...

Research paper thumbnail of Microwave-assisted synthesis and antioxidant activity of an imine, (E)-1-(3-bromobenzylidene)-2-phenylhydrazine

PROCEEDINGS OF THE 5TH INTERNATIONAL SYMPOSIUM ON CURRENT PROGRESS IN MATHEMATICS AND SCIENCES (ISCPMS2019)

Several Imines (Schiff bases) have been reported for their significant biological activity. In th... more Several Imines (Schiff bases) have been reported for their significant biological activity. In this work, an imine, (E)-1-(3-bromobenzylidene)-2-phenylhydrazine has been synthesized under microwave irradiation and evaluated for its antioxidant activity by DPPH assay. The structure of synthesized compound was confirmed based on the spectroscopic data included UV-Vis, FT-IR, MS, 1D and 2D NMR. Based on the DPPH assay, the synthesized compound possessed a strong antioxidant activity with IC50 value of 62 µ g/ml.

Research paper thumbnail of Design, molecular docking study, synthesis and in vivo evaluation of some bromonaphthyl pyrazolines as new anti-inflammatory agents

Empowering Science and Mathematics for Global Competitiveness

Research paper thumbnail of Microwave-assisted synthesis of 1-(4-hydroxyphenyl)-3-(4-methoxyphenyl)prop-2-en-1-one and its activities as an antioxidant, sunscreen, and antibacterial

Jurnal Kimia Sains dan Aplikasi

Chalcone analogs have been reported to have a variety of exciting biological activities, such as ... more Chalcone analogs have been reported to have a variety of exciting biological activities, such as anticancer, anti-inflammatory, antioxidant, photoprotective, antibacterial, and antidiabetic activities. Therefore, analogs of these compounds have been widely synthesized as intermediate compounds or target molecules in the discovery of bioactive compounds to be applied in the pharmaceutical field. The purpose of this study is to synthesize chalcone analog compounds (E)-1-(4-hydroxyphenyl)-3-(4-methoxyphenyl) prop-2-en-1-on with the microwave irradiation method and explore some of the biological activities of these compounds, including testing the antioxidant activity by 1,1-diphenyl-2-picrylhydrazyl (DPPH) method, in vitro sunscreen activity by microplate method, and antibacterial activity by disk diffusion method. DPPH test results indicate that the compound has weak antioxidant activity, with an IC50 value of 300.43 µg/mL. However, the compound showed excellent potential as a UV B an...

Research paper thumbnail of Sintesis Dan Uji Toksisitas Senyawa Analog Kalkon 3’-METOKSIASETOFENON Dengan 2-HIDROKSIBENZALDEHID

Photon: Jurnal Sain dan Kesehatan

Kalkon merupakan salah satu metabolit sekunder golongan flavonoid yang sangat berpotensi untuk di... more Kalkon merupakan salah satu metabolit sekunder golongan flavonoid yang sangat berpotensi untuk dikembangkan. Kalkon telah dilaporkan memiliki aktivitas biologis seperti antimikroba, antitumor, antioksidan, antiinflamasi, antimalaria, dan antikanker. Senyawa (E)-3-(2-hidroksifenil)-1-(3’-metoksifenil)prop-2-en-1-on disintesis dengan metode iradiasi gelombang mikro dan menggunakan katalis basa KOH. Struktur senyawa kalkon dikarakterisasi berdasarkan interpretasi data spektroskopi UV, IR, 1H-NMR, dan MS. Uji toksisitas senyawa kalkon ditentukan dengan metode Brine Shrimp Lethality Test dan menunjukkan aktivitas dengan nilai LC50 yaitu 186,48 μg/mL. Senyawa ini menunjukkan aktivitas toksisitas yang baik karena nilai LC50 < 200 μg/mL.

Research paper thumbnail of 3-(3,4-Dimethoxyphenyl)-5-(2-fluorophenyl)-1-phenyl-4,5-dihydro-1H-pyrazole

Molbank

A new analogue of fluorinated pyrazoline (compound 1) has been synthesized via one-pot three-comp... more A new analogue of fluorinated pyrazoline (compound 1) has been synthesized via one-pot three-component reaction under microwave irradiation. The structure of compound 1 has been established by spectroscopy analysis, including UV, FT-IR, HRMS, 1H and 13C NMR spectroscopy. Based on the in silico studies, this compound showed a good potential as an inhibitor for dengue virus type 2 (DEN2) NS2B/NS3 serine protease and can be used as a reference in the next design of an antidengue virus.

Research paper thumbnail of Synthesis and in Silico Studies of a Benzenesulfonyl Curcumin Analogue as a New Anti Dengue Virus Type 2 (DEN2) NS2B/NS3

Indonesian Journal of Pharmacy

Curcumin has been reported can interact with multiple molecular targets involved in a large varie... more Curcumin has been reported can interact with multiple molecular targets involved in a large variety of diseases. Accumulated evidence indicated curcumin plays an inhibitory role against infection of numerous viruses. Some studies have been reported that curcumin can interfere the infection processes of dengue virus. In this work, a benzenesulfonyl curcumin, (3E,5E)-3,5-bis(4-methoxybenzylidene)-1-(phenylsulfonyl) piperidin-4-one (compound 2) has been synthesized by two steps of reactions. The structure of compound 2 has been established based on the interpretation of spectral data include UV, FT-IR, MS/MS, 1 H and 13 C NMR. Then, the in silico studies have been also performed to predict the potency of compound 2 as inhibitor for dengue virus Type 2 (DEN 2) NS2B/NS3 protease. The in silico studies showed that compound 2 has hydrogen bonding with His51 residue, and amazingly that the other catalytic triad such as Asp75 and Ser135 were also showed interactions with the ligand. It is presumably that this compound showed very good activity against DEN2 and can be developed as a new inhibitor for dengue viruses.

Research paper thumbnail of Sintesis dan Potensi Aktivitas Tabir Surya Senyawa Analog Kalkon Turunan 3’-Hidroksiasetofenon dan 4-Metoksibenzaldehid

Photon: Jurnal Sain dan Kesehatan

Chalcone analogues have attracted the attention of researchers due to their various biological ac... more Chalcone analogues have attracted the attention of researchers due to their various biological activities. In this study, a chalcone analogue, (E)-1-(3-hydroxyphenyl)-3-(4-methoxyphenyl)prop-2-en-1-on has been synthesized under microwave irradiation and its sunscreen activity has been evaluated by in vitro assay using 96-well microplate reader. Based on the in vitro assay, at concentration of 100-500 µg/ml, the compound showed potential sunscreen activity with %Te value of 5.49 – 0.04 % (extra protection – sunblock), %Tp value of 0.51-0.05 % (sunblock) and SPF value of 18.20 – 32.91 (ultra protection). The assay result showed that the (E)-1-(3-hydroxyphenyl)-3-(4-methoxyphenyl)prop-2-en-1-on has a potency to be developed as active ingredient in sunscreen product.

Research paper thumbnail of The Influences of Power Variations on Selectivity of Synthesis Reaction of 2’-HYDROXYCHALCONE Analogue Under Microwave Irradiation

Molekul, Nov 28, 2016

Beberapa analog 2'-hidroksicalkon telah digunakan secara luas sebagai senyawa intermediet untuk m... more Beberapa analog 2'-hidroksicalkon telah digunakan secara luas sebagai senyawa intermediet untuk mensintesis berbagai macam senyawa heterosiklik, seperti flavanon, flavanonol, flavon, flavonol dan lain sebagainya. Senyawa-senyawa heterosiklik tersebut diketahui mempunyai beragam bioaktivitas yang menarik dalam bidang kimia medisinal dan juga berpotensi untuk diaplikasikan dalam bidang kimia material termasuk dalam bidang industri. Oleh karena itu, analog 2'hidroksicalkon sering disintesis oleh para peneliti sebagai senyawa intermediet, baik di dalam riset yang berhubungan dengan penemuan obat maupun kimia material. Penelitian ini bertujuan untuk mengamati pengaruh variasi daya iradiasi gelombang mikro terhadap selektivitas reaksi sintesis analog 2'-hidroksicalkon. Variasi daya yang digunakan dalam penelitian ini adalah 100, 180, 300 dan 450 W dengan menggunakan microwave rumahan. Berdasarkan hasil penelitian, diperoleh kesimpulan bahwa variasi daya iradiasi gelombang mikro terbukti dapat mempengaruhi selektivitas reaksi sintesis analog 2'-hidroksicalkon. Dalam hal ini, daya iradiasi yang paling sesuai untuk digunakan pada reaksi sintesis tersebut adalah 180 W. Kata kunci: 2'-hidroksicalkon, iradiasi gelombang mikro, kondensasi aldol.