Carapanolides T-X from Carapa guianensis (Andiroba) Seeds - PubMed (original) (raw)

Carapanolides T-X from Carapa guianensis (Andiroba) Seeds

Teppei Miyake et al. Molecules. 2015.

Abstract

Two new mexicanolide-type limonoids, carapanolides T-U (1-2), and three new phragmalin-type limonoids, carapanolides V-X (3-5), were isolated from the seeds of Carapa guianensis (andiroba). Their structures were determined on the basis of 1D- and 2D-NMR spectroscopy.

Keywords: Carapa guianensis; Meliaceae; NO production; andiroba; limonoid; mexicanolide; phragmalin; seeds.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1

Figure 1

Chemical structures of Compounds 15.

Figure 2

Figure 2

Key HMBC, COSY and NOESY correlations for carapanolide T (1).

Figure 3

Figure 3

Key HMBC, COSY and NOESY correlations for carapanolide V (3).

Figure 4

Figure 4

Key HMBC, COSY and NOESY correlations for carapanolide X (5).

Figure 5

Figure 5

Inhibitory activities on NO production and cytotoxicities of Compounds 15 and

l

-NMMA. Each value represents the mean ± the standard error (S.E.) of four determinations. Significant differences from the vehicle control (0 μM) group shown as * p < 0.05 and ** p < 0.01 in the NO inhibitory assay and # p < 0.05 and ## p < 0.01 in the cytotoxicity assay.

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