Compounds of formula I: ##STR1## wherein R, R.sup.1, R.sup.2, R.sup.3, and R.sup.4 have any of the values defined in the specification, and their pharmaceutically acceptable salts, are inhibitors of aromatase, and are useful for treating diseases such as breast cancer, in mammals. Also disclosed are pharmaceutical compositions, processes for preparing compounds of formula (I) and intermediates useful for preparing compounds of formula I.
公式I的化合物:##STR1## 其中R,R.sup.1,R.sup.2,R.sup.3和R.sup.4具有规范中定义的任何值,以及它们的药学上可接受的盐,是芳香化酶
抑制剂,并且对于治疗哺乳动物的疾病,例如乳腺癌,是有用的。还公开了制备公式(I)化合物和用于制备公式I化合物的中间体的制药组合物和过程。