NEW CRYSTALLINE FORM OF ANTIANDROGEN DRUG WHICH TREATS PROSTATE CANCER, AND PREPARATION METHOD FOR NEW CRYSTALLINE FORM

摘要

Provided are a new crystalline form of an antiandrogen drug which treats prostate cancer, said drug being represented by formula I, and a preparation method for the new crystalline form. The crystalline form has good stability, and the solubility and hygroscopicity meet pharmaceutical requirements. The preparation method is simple and low-cost.