17b-aryl-4-aza-steroid derivatives useful as 5-alpha-reductase inhibitors

摘要

Compounds of the formula <IMAGE> are inhibitors of 5 alpha -reductase and are useful alone or in combination with other active agents for the treatment of hyperandrogenic disorders such as acne vulgaris, seborrhea, female hirsutism, male pattern baldness, and benign prostatic hyperplasia.