C - Chemistry – Metallurgy – 07 – J
Patent
C - Chemistry, Metallurgy
07
J
260/18
C07J 43/00 (2006.01) A61K 31/58 (2006.01)
Patent
CA 1148533
ABSTRACT OF THE DISCLOSURE Transient, orally active thiazolidine type prodrug forms of conventional, natural and synthetic ketosteroidal sex hormones, e.g., of progesterone, testosterone, and the like, are disclosed. The subject compounds can be prepared by known methods, for example, by reacting the corresponding 3-keto or 3,20-diketo steroids with a thiazolidine- forming reagent such as an L-cysteine alkyl ester.
323352
Bodor Nicholas S.
Sloan Kenneth B.
Interx Research Corporation
Osler Hoskin & Harcourt Llp
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