Crystal structure of (3S)-3-acetoxy-17-(pyridin-3-yl)androsta-5,16-diene

Crystal structure of (3S)-3-acetoxy-17-(pyridin-3-yl)androsta-5,16-diene

In the title compound, C26H33NO2 [systematic name: (3S,8R,9S,10R,13S,14S)-10,13-dimethyl-17-(pyridin-3-yl)-2,3,4,7,8,9,10,11,12,13,14,15-dodecahydro-1H-cyclopenta[a]phenanthren-3-yl acetate], the steroid A, B, C and D rings adopt chair, half-chair, chair and envelope conformations, respectively. The...

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Bibliographic Details
Main Authors: Shengjun Zhou, Huaqi Huang, Rongbin Huang
Format: Article
Language:English
Published: International Union of Crystallography 2015-03-01
Series:Acta Crystallographica Section E: Crystallographic Communications
Subjects:
crystal structure
androsta-5,16-diene
hydrogen bonds
C(16) chain
Online Access:http://scripts.iucr.org/cgi-bin/paper?S2056989015001966
Description
Summary:In the title compound, C26H33NO2 [systematic name: (3S,8R,9S,10R,13S,14S)-10,13-dimethyl-17-(pyridin-3-yl)-2,3,4,7,8,9,10,11,12,13,14,15-dodecahydro-1H-cyclopenta[a]phenanthren-3-yl acetate], the steroid A, B, C and D rings adopt chair, half-chair, chair and envelope conformations, respectively. The flap atom of the envelope is the methine C atom fused with the C ring. In the crystal, adjacent molecules, generated by a 21 screw axis, are linked by weak C—H...O hydrogen bonds, forming a C(16) helical chain running along the c-axis direction.
ISSN:2056-9890

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