申请人:Takeda Chemical Industries, Ltd.
公开号:US05466689A1
公开(公告)日:1995-11-14
A compound represented by the formula ##STR1## wherein X is hydrogen or a substituent; R.sup.1 is an optionally substituted hydrocarbon residue; R.sup.2 and R.sup.3 are respectively hydrogen or a substituent; and ----- shows a single bond or a double bond, or a pharmacologically acceptable acid addition salt thereof, has an analgesic action and is useful as a medicine.
一种由以下化学式表示的化合物,其中X为氢或取代基;R1为可选择性取代的碳氢化合物残基;R2和R3分别为氢或取代基;而“-----”表示单键或双键,或者其药理上可接受的酸加成盐,具有镇痛作用,可用作药物。