Peter Feather

17ALPHA-ALKA-1',3'-DIYNYL STEROIDS

SUBSTITUTED - 17ALPHA - BUTA - 1',3'-DIYNYL-17BETA-HYDROXY(17BETA-ALKOXY)-STEROIDS AND PROCESS FOR PREPARATION THEREOF

17α-(1',3'-ALKADIYNYL)-17β-ACYLOXY(17β-AROYLOXY) STEROIDS

17ALPHA - ALKA - 1',3' - DIYNYL - STEROIDAL-4,9(10)-DIEN-3-ONES

17A-(5'-SUBSTITUTED-5'-HYDROXY-PENTA-1', 3'-DIYNYL)-STEROIDS

17alpha-1 3-alkadiynyl-17beta-acyloxy-androstanes and

Verfahren zur Herstellung von neuen 17a-(1',3'-Alkadiinyl)-steroiden

Cpds. of formula (I), which may opt. contain further substituents in rings A, B, C and D. where R=C1-5 alkyl, R1=H or C1-5 alkyl, R2=Me or Et. Proge

17 Alpha-alka-1',3'-diynyl -17 beta-hydroxy and alkoxy steroids

Verfahren zur Herstellung von neuen 17a-Chloräthinyl-17B-alkoxy-steroiden