申请人:Tanabe Seiyaku Co., Ltd
公开号:US03932429A1
公开(公告)日:1976-01-13
A compound of the formula: ##SPC1## Wherein R.sup.1 is hydrogen, phenyl, alkyl of one to five carbon atoms, cycloalkyl of three to four carbon atoms, or alkyl of one to five carbon atoms having a substituent selected from the group consisting of phenyl, benzoyl and 4-fluorobenzoyl, R.sup.2 is hydrogen or alkyl of one to three carbon atoms, and R.sup.3 is hydrogen, alkanoyl of two to six carbon atoms, benzoyl or nicotinoyl, is disclosed. Several methods for preparing the compound (I) is also disclosed. The compound (I) and a pharmaceutically acceptable acid addition salt thereof are useful as analgesic agents.
该化合物的化学式为:##SPC1## 其中R.sup.1为氢、苯基、碳原子数为一至五的烷基、碳原子数为三至四的环烷基,或者碳原子数为一至五且具有苯基、苯甲酰基和4-氟苯甲酰基等取代基的烷基;R.sup.2为氢或碳原子数为一至三的烷基;R.sup.3为氢、碳原子数为二至六的烷酰基、苯甲酰基或烟酰基。还公开了制备该化合物(I)的几种方法。该化合物(I)及其药用可接受的酸盐作为镇痛剂具有用途。