Crystal structure of 16-hy-droxy-4,4,10,13,14-penta-methyl-17-(6-methyl-hept-5-en-2-yl)-4,5,6,9,10,11,12,13,14,15,16,17-dodeca-hydro-1H-cyclo-penta-[a]phenanthren-3(2H)-one | Health & Environmental Research Online (HERO)

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Citation
Tags

HERO ID

7673999

Reference Type

Journal Article

Title

Crystal structure of 16-hy-droxy-4,4,10,13,14-penta-methyl-17-(6-methyl-hept-5-en-2-yl)-4,5,6,9,10,11,12,13,14,15,16,17-dodeca-hydro-1H-cyclo-penta-[a]phenanthren-3(2H)-one

Author(s)

Ge, JJ; Chen, P; Ye, XX

Year

2015

Journal

Acta Crystallographica Section E-Crystallographic Communications
ISSN: 2056-9890

Publisher

International Union of Crystallography

Volume

Issue

Pt 7

Page Numbers

o464-o465

Language

English

PMID

26279910

DOI

10.1107/S2056989015010592

Abstract

The title compound, C30H48O2, contains a fused four-ring triterpenoid system. In the mol-ecule, the two cyclo-hexane rings adopt a chair conformation and a twist boat conformation, respectively, the central cyclo-hexene ring adopts a half-chair conformation whereas the five membered ring adopts an envelope conformation. In the crystal, O-H⋯O hydrogen bonds between the hy-droxy and carbonyl groups of adjacent mol-ecules link the mol-ecules into supra-molecular chains propagating along the b-axis direction.

Keywords

Crystal structure; Melia azedarach; O-Hâ¯O hydrogen bonds; Triterpenoid