17 urea, thiourea, thiocarbamyl and carbamyl4-azasteroid 5-reductase inhibitors useful in the prevention and treatment of hyperandrogenic disorders

摘要

PCT No. PCT/US93/04634 Sec. 371 Date Mar. 1, 1995 Sec. 102(e) Date Mar. 1, 1995 PCT Filed May 17, 1993 PCT Pub. No. WO93/23048 PCT Pub. Date Nov. 25, 1993 <IMAGE> (I) <IMAGE> (a) <IMAGE> (b) alpha -reductase inhibitors of formula (I), wherein A is (a), (b) or (c), are claimed as well as pharmaceutically acceptable salts and formulations thereof. These compounds are effective inhibitors of testosterone 5 alpha -reductase(s) and are thus useful in the treatment of a number of hyperandrogenic conditions including benign prostatic hypertrophy, acne, seborrhea, female hirsutism, and male and female pattern baldness (alopecia).