申请人:Otsuka Pharmaceutical Co., Ltd.
公开号:US05409928A1
公开(公告)日:1995-04-25
This invention provides a condensed pyrazole derivative of the Formula (1): ##STR1## (where A denotes CH or N, R.sup.0 and R.sup.3 denote same or different, a hydrogen atom or a lower alkyl group, R.sup.1 and R.sup.2 denote same or different, a hydrogen atom, a lower alkyl group, a lower alkoxy group, a lower alkylthio group, a nitro group or a halogen atom, m denotes 1 or 2, and n denotes 1, 2 or 3, provided that, when n is 2, two R.sup.2 may be connected to each other to form a lower alkylenedioxy group), or its pharmaceutically acceptable salt. This derivative or its salt is excellent in the effect of inhibiting the expression of action of androgen, thereby being excellent in therapeutical effect of benign prostatic hypertrophy, prostatic carcinoma, etc., and has a long lasting of efficacy and high oral absorption.
本发明提供了公式(1)的紧缩吡唑衍生物:##STR1##(其中A表示CH或N,R.sup.0和R.sup.3表示相同或不同,氢原子或较低的烷基基团,R.sup.1和R.sup.2表示相同或不同,氢原子,较低的烷基基团,较低的烷氧基基团,较低的烷硫基基团,硝基或卤素原子,m表示1或2,n表示1,2或3,但当n为2时,两个R.sup.2可以连接在一起形成较低的烷基二氧基基团),或其药学上可接受的盐。该衍生物或其盐在抑制雄激素的作用表达方面具有卓越的效果,因此在治疗良性前列腺增生,前列腺癌等方面具有卓越的治疗效果,并且具有持久的疗效和高口服吸收率。