Thiol-substituted synthetic steriod hormones or androgens having a testosterone ring system backbone are used to inhibit aromatase's catalyzed conversion of C.sub.19 androgens having a A.sup.4,3-ketone group to estrogens in the treatment of estrogen-dependent tumors, such as metastatic breast cancer in postmenopausal females. The compounds have the general formula: ##STR1## wherein R.sub.1 =a thiol, such as --SH or --CH.sub.2 SH, and R.sub.2 =OH or =O. The preferred synthetic hormones are 17.beta.-hydroxy-10.beta.-mercaptoestr-4-en-3-one, 19-mercaptoandrost-4-en-3,17-dione, and 10.beta.-mercaptoandrost-4-en-3,17-dione.
硫醇取代的合成类
固醇激素或雄激素具有
睾酮环系统骨架,用于抑制芳香化酶催化的C.sub.19雄激素,具有A.sup.4,3-酮基团的转化为
雌激素,用于治疗依赖
雌激素的肿瘤,例如绝经后女性的转移性乳腺癌。这些化合物的一般式为:##STR1##其中R.sub.1 =
硫醇,例如--SH或--CH.sub.2SH,R.sub.2 =OH或=O。首选的合成激素是17.beta.-羟基-10.beta.-巯基雌-4-烯-3-酮,19-巯基雄-4-烯-3,17-二酮和10.beta.-巯基雄-4-烯-3,17-二酮。