C - Chemistry – Metallurgy – 07 – J
Patent
C - Chemistry, Metallurgy
07
J
C07J 73/00 (2006.01) A61K 31/58 (2006.01) C07J 1/00 (2006.01) C07J 21/00 (2006.01) C07J 51/00 (2006.01)
Patent
CA 2157363
Compounds of formula (I) or a pharmaceutically acceptable salt or ester thereof, wherein R1 is -H or C1-10 alkyl; R2 is -H or C1-10 alkyl; R3 is C1-10 alkyl, C2-10 alkenyl, C1-10 alkoxyl, cyano, or triphenylthio- C1-6 alkyl; and R4 is a mono-substituent or di-substituent are useful as inhibitors of 5.alpha.-reductase. These compounds can be used alone or in combination with other active agents to treat acne, androgenic alopecia, female hirsutism, benign prostatic hyperplasia, prostatitis, and treat and prevent prostatic carcinoma.
Durette Philippe L.
Esser Craig K.
Hagmann William
Kopka Ihor E.
Merck & Co. Inc.
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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