-HYDROXY-3-METHOXYESTRA-1,3,5(10)-TRIENE-6,7-DIONE 7-OXIME

Authors
STANKOVIC S LAZAR D PETROVIC J MILJOVIC D PAJANOVIC V COURSEILLE C
Citation
S. Stankovic et al., -HYDROXY-3-METHOXYESTRA-1,3,5(10)-TRIENE-6,7-DIONE 7-OXIME, Acta crystallographica. Section C, Crystal structure communications, 51, 1995, pp. 1581-1583
Citations number
7
Categorie Soggetti
Crystallography
Journal title
Acta crystallographica. Section C, Crystal structure communications → ACNP
ISSN journal
01082701
Volume
51
Year of publication
1995
Part
8
Pages
1581 - 1583
Database
ISI
SICI code
0108-2701(1995)51:<1581:-7>2.0.ZU;2-C
Abstract
X-ray structure analysis of the title compound, C19H23NO4, showed an u nexpected anti orientation for the 6-oxo-7-oximino function. After mol ecular-mechanics calculations, the H atom of the 17-hydroxy moiety, wh ich participates in a strong hydrogen bond formed in the crystalline s tate, changed its orientation substantially. Some change in the confor mation of ring. B was also observed.