| abstract |
Compounds of formula (I) n n n n n n n n n n n n wherein R 1 to R 8 , A, B, Z 1 , and Z 2 are as defined in the claims and pharmaceutically acceptable salts and esters thereof are disclosed. The compounds of formula (I) possess utility as androgen receptor antagonists (inhibitors) and/or cytochrome P450 monooxygenase 17α-hydroxylase/17,20-lyase (CYP17) inhibitors. The compounds are useful as medicaments in the treatment of cancer, particularly prostate cancer, and other androgen dependent conditions and diseases where androgen antagonism is desired. |