D-homo steroids

Details D-homo steroids D-homo steroids

C - Chemistry, Metallurgy

07

J

260/4

C07J 63/00 (2006.01)

Patent

CA 1187483

Abstract D-Homosteroids of the formula Image I wherein R4 signifies hydrogen, methyl, chlorine or hydroxy; R6 signifies hydrogen or methylene; R17a.alpha. signifies hydrogen, methyl or chlorine and R17a.beta. signifies carboxy, esterified carboxy, cyano, formyl, carbamoyl, mono(lower alkyl)carbamoyl or di(lower alkyl- -carbamoyl; or R17a.alpha. and R17a.beta. together signify a spiroether ring of the formula Image and wherein the dotted bonds in the D-ring represent an optional 16(17)- or 17(17a)-double bond, have anti-androgenic activity. They can be manufactured in various ways by the molecular transformation of other D-homosteroids.

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