title: Structure of 3 beta-hydroxy-16-oxo-24-nor-17-azachol-5-eno-23-nitrile and its 20S epimer.
abstract: The structures of the title compounds have been investigated in solid state by X-ray and in solution by NMR methods. The configurations at C20 and the preferred conformations of both epimers were established. A full assignment of signals in 1H and 13C NMR spectra was done.
authors.affiliation: Institute of Chemistry, University of Warsaw, Bialystok, Poland.
authors.forename: J W
authors.initials: JW
authors.lastname: Morzycki
authors.forename: Z
authors.initials: Z
authors.lastname: Lotowski
authors.forename: L
authors.initials: L
authors.lastname: Siergiejczyk
authors.forename: J
authors.initials: J
authors.lastname: Lipkowski
authors.forename: A
authors.initials: A
authors.lastname: Tabaszewska
authors.forename: J
authors.initials: J
authors.lastname: Wójcik
mesh_terms: D001372:Aza Compounds / Q000737:chemistry*; D002247:Carbon Isotopes; D018360:Crystallography, X-Ray; D009682:Magnetic Resonance Spectroscopy; D008958:Models, Molecular; D009654:Norsteroids / Q000737:chemistry*; D011522:Protons; D013237:Stereoisomerism
chemical_list: C094722:3-hydroxy-16-oxo-24-nor-17-azachol-5-eno-23-nitrile; D001372:Aza Compounds; D002247:Carbon Isotopes; D009654:Norsteroids; D011522:Protons