abstract |
The present invention provides a compound of formula (I) for use in androgen related treatments such as androgen deficiency and male or female contraception wherein R 1 is O, (H, H), (H, OH), NOH. OH is optionally etherified or esterified; R 2 and R 3 are independently hydrogen or (C 1-4 ) alkyl, and at least one of R 2 and R 3 is (C 1-4 ) alkyl; R 4 is hydrogen or (C 1-15 ) acyl]. |