| Literature DB >> 11870328 |
Lothar Bore1, Tadashi Honda, Gordon W Gribble, Enno Lork, Jerry P Jasinski.
Abstract
The title compound, C(32)H(43)NO(4) x CH(4)O x H(2)O, has a nearly planar cyano-enone A ring in an otherwise normal oleanane triterpenoid. Rings A, B and C are non-chairs, but rings D and E adopt essentially cyclohexane chair conformations. The structure clearly establishes the C-D-E ring stereochemistry as trans-syn-cis, as predicted from a nuclear Overhauser effect (NOE) NMR measurement.Entities:
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Year: 2002 PMID： 11870328 DOI： 10.1107/s010827010102176x
Source DB: PubMed Journal: Acta Crystallogr C ISSN： 0108-2701 Impact factor: 1.172