Chlorodiethyldimethylsiloxy - trimethylsiloxy - and ethyldimethylsiloxy-steroid oximes -as contraceptive agent

Chlorodiethyldimethylsiloxy - trimethylsiloxy - and ethyldimethylsiloxy-steroid oximes -as contraceptive agent

Title derivs are derived from 17 alpha-ethinyl-13 beta-ethylgon-4-enes, 17 alpha-13 beta-methylgon-4-enes, 17 alpha-chloro-ethinyl-17 alpha-vinyl-19-norsteroids and the DELTA 5-derivs. are prepd. by silylation in aprotic dipolar solvents. Thus 17 alpha-ethynyl-3-trimethylsilyloximino-19-norandrost-4...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: K. BARNIKOL-OETTLER, G. TEICHMULLER
Format: Patent
Sprache:eng ; fre
Schlagworte:
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
STEROIDS
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Beschreibung
Zusammenfassung:Title derivs are derived from 17 alpha-ethinyl-13 beta-ethylgon-4-enes, 17 alpha-13 beta-methylgon-4-enes, 17 alpha-chloro-ethinyl-17 alpha-vinyl-19-norsteroids and the DELTA 5-derivs. are prepd. by silylation in aprotic dipolar solvents. Thus 17 alpha-ethynyl-3-trimethylsilyloximino-19-norandrost-4-en-17 beta-ol-17-acetate(mixed isomers) is prepd. from the 3-oximino cpd. by silylation with trimethylchlorosilane in DMF and pyridine.