Studies on anabolic steroids. 9. Tertiary sulfates of anabolic 17α-methyl steroids: synthesis and rearrangement
作者:Honggang Bi、Robert Massé、George Just
DOI:10.1016/0039-128x(92)90048-e
日期:1992.7
A simple and convenient method has been developed to prepare sulfates of anabolic 17-beta-hydroxy-17-alpha-methyl steroids. The sulfates of methandienone, 17-alpha-methyltestosterone, mestanolone, oxandrolone, and stanozolol were prepared. Different A-ring functions were not affected under the sulfation condition. The buffered hydrolyses of these sulfates provided the 17-epimers of the original steroids and 17, 17-dimethyl-18-nor-13(14)-ene steroids, presumably via the 17-carbocations.
MASSE, ROBERT;AYOTTE, CHRISTIANE;DUGAL, ROBERT, J. CHROMATOGR. BIOMED. APPL., 489,(1989) N, C. 23-50
作者:MASSE, ROBERT、AYOTTE, CHRISTIANE、DUGAL, ROBERT
DOI:——
日期:——
[EN] TASTE-MASKED DOSAGE FORMS<br/>[FR] FORMES POSOLOGIQUES À GOÛT MASQUÉ
申请人:BAINS KENWALJIT SINGH
公开号:WO2020061584A1
公开(公告)日:2020-03-26
Sublingual dosage forms comprising a bitter active ingredient (including sildenafil, tadalafil, tetrahydrocannabinol, and cannabidiol) and a bitterness reducing agent are described. Methods of treating sexual dysfunction by administering the sublingual dosage form to an individual in need thereof are also described.
17-Epimerization of 17α-methyl anabolic steroids in humans: metabolism and synthesis of 17α-hydroxy-17β-methyl steroids
作者:Willi Schänzer、Georg Opfermann、Manfred Donike
DOI:10.1016/0039-128x(92)90023-3
日期:1992.11
chromatography as trimethylsilyl derivatives from a capillary SE-54 or OV-1 column 70-170 methylen units before the corresponding 17 alpha-methyl epimer. The electron impact mass spectra of the underivatized and trimethylsilylated epimers are in most cases identical and only for I, II, and V was a differentiation between the 17-epimers possible. 1H nuclearmagneticresonance (NMR) spectra show for the 17 beta-methyl