申请人:Tanabe Seiyaku Co., Ltd.
公开号:US04882340A1
公开(公告)日:1989-11-21
A novel benzofuran derivative of the formula: ##STR1## wherein R.sup.1 is hydrogen atom, a lower alkoxy group or a halogen atom, one of R.sup.2 and R.sup.3 is a lower alkyl group and the other is a lower alkyl group or a phenyl-lower alkyl group, or R.sup.2 and R.sup.3 combine together with adjacent nitrogen atom to form a heteromonocyclic group, Ring A is a substituted or unsubstituted phenyl group, Y is oxygen atom or sulfur atom and n is an integer of 2 or 3, or a pharmaceutically acceptable salt thereof is disclosed. The compound (I) or a pharmaceutically acceptable salt thereof has a potent inhibitory activity against reflective contractions of urinary bladder.
一种新的苯并呋喃衍生物的化学式为:##STR1## 其中R.sup.1是氢原子,较低的烷氧基团或卤原子,R.sup.2和R.sup.3中的一个是较低的烷基团,另一个是较低的烷基团或苯基-较低的烷基团,或者R.sup.2和R.sup.3结合在一起与相邻的氮原子形成一个杂单环基团,环A是取代或未取代的苯基团,Y是氧原子或硫原子,n是2或3的整数,或其药学上可接受的盐。化合物(I)或其药学上可接受的盐对尿道膀胱反射性收缩具有强大的抑制活性。