An unusual conformational change in the folded trimethylene/leonard linker pyrazolo[3,4-d]pyrimidine analogue of the theophylline compound due to structural changes (original) (raw)

Journal of Molecular …, 2006

Crystal structure of 1-ethyl-pyrazolo[3,4-d]pyrimidine-4(5H)-thione

Acta crystallographica. Section E, Structure reports online, 2014

Design and synthesis of pyrazolo[3,4-d]pyrimidine core based dissymmetrical `Leonard linker' compounds: 1H NMR and crystallographic evidence for folded conformation due to arene interactions

J Mol Struct, 2006

Crystal structure of 1-methyl-4-methyl-sulfanyl-1H-pyrazolo-[3,4-d]pyrimidine

Acta crystallographica. Section E, Structure reports online, 2014

Design and Synthesis of Pyrazolo [3, 4-D] Pyrimidine and Triazolo [4, 5-D] Pyrimidine Based Dissymmetrical [] Leonard Linker'Compounds: 1H NMR and Crystallographic …

Journal of Molecular …, 2007

Crystal structure of 4-allyl-sulfanyl-1H-pyrazolo-[3,4-d]pyrimidine

Acta crystallographica. Section E, Structure reports online, 2014

Crystal and molecular structure of 1-allyl-5-(4-methylbenzoyl)-4-(4-methylphenyl)pyrimidine-2(1H)-thione

Muharrem Dinçer

Crystal Research and Technology, 2006

A Stacked Pyrazolo[3,4-d]pyrimidine-Based Flexible Molecule

Professor Diwan S. Rawat

Acta Crystallographica Section C-crystal Structure Communications, 1998

Crystal structure of 1,5-diethyl-3′,5′-diphenyl-1,5-dihydro-3′ H -spiro[pyrazolo[3,4- d ]pyrimidine-4,2′-[1,3,4]thiadiazole]

Acta Crystallographica Section E Crystallographic Communications, 2015

1H NMR and X-Ray Crystallographic Analysis of 1, 2-Bis (4, 6-Diethylthio-1H-Pyrazolo [3, 4-D] Pyrimidin-1-Yl) Ethane and Its [] Propylene Linker'-Analog: Molecular …

Tetrahedron Letters, 2001

A Dimeric Layered Structure of a 4-Oxo-4, 5-Dihydro-1H-Pyrazolo [3, 4-D] Pyrimidine Compound

… Section C: Crystal …, 2002

Crystal structure of 3-methyl-1-phenyl-6-propylamino-1 H -pyrazolo[3,4- b ]pyridine-5-carbonitrile

Shaaban K Mohamed

Acta Crystallographica Section E Crystallographic Communications, 2015

7-Amino-5-methyl-2-phenyl-6-(phenyldiazenyl)pyrazolo[1,5-a]pyrimidine crystallizes with Z' = 2: pseudosymmetry and the formation of complex sheets built from N-H...N and C-H...pi(arene) hydrogen bonds

Jaime Portilla

Acta crystallographica. Section C, Crystal structure communications, 2010

Unusual molecular conformation in dissymmetric propylene-linker compounds containing pyrazolo[3,4-d]pyrimidine and phthalimide moieties

Umesh Yadava

Acta Crystallographica Section C Crystal Structure Communications, 2003

Design and synthesis of pyrazolo[3,4-d]pyrimidine and triazolo[4,5-d]pyrimidine based dissymmetrical ‘Leonard linker’ compounds: 1H NMR and crystallographic evidence for folded conformation due to arene interactions

Journal of Molecular Structure, 2007

Ethyl (2Z)-2-(3-methoxybenzylidene)-7-methyl-3-oxo-5-phenyl-2,3-dihydro-5H-1,3-thiazolo[3,2-a]pyrimidine-6-carboxylate

Mukesh Jotani

Acta Crystallographica Section E Structure Reports Online, 2010

A second monoclinic polymorph of 6-amino-1,3-dimethyl-5-[(E)-2-(methylsulfanyl)benzylideneamino]pyrimidine-2,4(1H,3H)-dione

muhammed ismail

Acta Crystallographica Section E Structure Reports Online, 2011

Isomeric pyrazolo[3,4- d ]pyrimidine-based molecules: disappearance of dimerization due to interchanged substitutions

Professor Diwan S. Rawat

Acta Crystallographica Section C Crystal Structure Communications, 2002

Crystal structure of 5,5′-[(4-fluorophenyl)methylene]bis[6-amino-1,3-dimethylpyrimidine-2,4(1 H ,3 H )-dione]

Rajni Kant

Acta Crystallographica Section E Structure Reports Online, 2014

Crystal structure of ethyl 2-acetyl-3,7-dimethyl-5-(thiophen- 2-yl)-5H -thiazolo[3,2-a]pyrimidine-6-carboxylate

prasad nl

Unusual Effect of Bulky Isopropyl Group on Robustness of the U-Motif In Pyrazolo [3, 4-D] Pyrimidine Core Based [] Leonard Linker'Compounds In Comparison to Methyl/ …

Journal of Molecular …, 2008

3,4,6-Trimethyl-1-phenyl-1H-pyrazolo[3,4-b]pyridine

Mostafa Khouili

Acta Crystallographica Section E-structure Reports Online, 2010

6-(3,5-Dimethylbenzyl)-5-ethyl-1-[(2-phenylethoxy)methyl]pyrimidine-2,4(1 H ,3 H )dione

Hazem Ghabbour

Acta Crystallographica Section E Structure Reports Online, 2012

pyrazolo(1,5-a)pyrimidine: a three- dimensional framework structure built from two N—HN hydrogen bonds

Jairo Quiroga

A hydrogen-bonded chain of rings in 7-amino-5-tert-butyl-2-methylpyrazolo [1, 5-a] pyrimidine, and a hydrogen-bonded framework structure in 3, 7-diamino-2, 5- …

Jaime Portilla

… Section C: Crystal …, 2006

1-Methyl-3-(2-methylphenyl)-4-phenyl-1H-pyrazolo[3,4-d]pyrimidine

IUCrData

3,4,6-Trimethyl-1-phenyl-1H-pyrazolo[3,4-b]pyridine

Mostafa Khouili

Acta Crystallographica Section E Structure Reports Online, 2010

Crystal Structure of Ethyl (2Z, 5R)-2-benzylidene-7-methyl-3-oxo-5-phenyl-2,3-dihydro-5H-[1,3] Thiazolo [3,2-a] Pyrimidine-6-carboxylate

Jerry Jasinski

Journal of Chemical Crystallography, 2009

( E )- N -{[6-Chloro-4-(4-chlorophenyl)-3-methyl-1-phenyl-1 H -pyrazolo[3,4- b ]pyridin-5-yl]methylene}benzene-1,2-diamine: a three-dimensional framework structure built from only two hydrogen bonds

Jairo Quiroga

Acta Crystallographica Section C Crystal Structure Communications, 2010