| abstract |
An inhibitor of testosterone 5 alpha reductase activity, for example, formula (I), where the new substituents are R, R, R, R and / or which are useful in the treatment of diseases that are triggered by the activation of androgen receptors, for example, prostate cancer, benign prostatic hyperplasia, inflammation of the sebaceous gland, seborrhea, abnormal hairiness, androgenic alopecia, and the like. |