申请人:SYNTEX (U.S.A.) INC.
公开号:EP0180994A2
公开(公告)日:1986-05-14
Compounds useful in the treatment of cardiovascular diseases, such as hypertension, congestive heart failure, arrhythmia, migraine, and vasospastic disorders, and intraocular hypertensive diseases such as glaucoma are represented by the formula
or a pharmaceutically acceptable acid addition salt thereof, wherein
R, is alkyl of two to four carbon atoms; and
R2 is alkyl of three or four carbon atoms; or
R, and R2 taken together with N form
wherein n is 0, or 2 and R5 and R6 are each independently lower alkyl or hydrogen;
R3 is hydrogen or hydroxy;
R4 is hydrogen, lower alkyl, amino, or lower alkylamino.
可用于治疗心血管疾病(如高血压、充血性心力衰竭、心律失常、偏头痛和血管痉挛性疾病)和眼内高血压疾病(如青光眼)的化合物由式或其药学上可接受的酸加成盐表示,其中 R 为 2 至 4 个碳原子的烷基;R2 为 3 或 4 个碳原子的烷基;或 R 和 R2 与 N 共同形成,其中 n 为 0 或 2,R5 和 R6 各自独立地为低级烷基或氢;R3 为氢或羟基;R4 为氢、低级烷基、氨基或低级烷基氨基。