申请人:Farmitalia Carlo Erba, S.p.A.
公开号:US04602022A1
公开(公告)日:1986-07-22
Compounds of the formula (I) ##STR1## wherein the symbol represents a single or a double bond; each of R.sub.1, R.sub.2, R.sub.3 and R.sub.4, which may be the same or different is (a) hydrogen; hydroxy; halogen; cyano; C.sub.1 -C.sub.6 alkyl; C.sub.1 -C.sub.6 alkoxy; a C.sub.2 -C.sub.4 acyl or C.sub.2 -C.sub.4 acylamino group; --SR', --N(R') (R"), --CH.sub.2 OR', --COR or --CH.sub.2 COR, wherein R is OR' or --N(R') (R") and each of R' and R", being the same or different, is hydrogen or C.sub.1 -C.sub.6 alkyl; or (b) one of R.sub.1, R.sub.2, R.sub.3 and R.sub.4 is 5-tetrazolyl or a group selected from --COCH.sub.2 OR', --CH.dbd.C(R')--COR and --X--C(R')(R")--COR, wherein R, R' and R" are as defined above, and X is --O--, --S--, or --NH--, and the others are as defined above under (a); R.sub.5 is hydrogen, C.sub.1 -C.sub.6 alkyl, C.sub.3 -C.sub.6 cycloalkyl, or a phenyl or 3-pyridyl ring, wherein the phenyl or pyridyl ring is unsubstituted or substituted by one to three substituents chosen from hydroxy and C.sub.1 -C.sub.4 alkoxy; or pharmaceutically acceptable salt thereof exhibit pharmaceutical activity as vasodilators or blood platelet aggregation inhibitors. Additionally, these compounds and their pharmaceutically acceptable salts are useful in the treatment of migraine, diabetic microangiopathy, rheumatoid arthritis, hypertension, peptic ulcers, osteoporosis, angina pectoris, atherosclerosis and dislipidaemies.
式(I)的化合物 ##STR1## 其中符号表示单键或双键;R.sub.1,R.sub.2,R.sub.3和R.sub.4中的每一个,可能相同或不同,是(a)氢;羟基;卤素;氰基;C.sub.1-C.sub.6烷基;C.sub.1-C.sub.6烷氧基;C.sub.2-C.sub.4酰基或C.sub.2-C.sub.4酰胺基;--SR',--N(R')(R"),--CH.sub.2 OR',--COR或--CH.sub.2 COR,其中R为OR'或--N(R')(R"),而R'和R"中的每一个,相同或不同,是氢或C.sub.1-C.sub.6烷基;或(b)R.sub.1,R.sub.2,R.sub.3和R.sub.4中的一个是5-四唑基或从--COCH.sub.2 OR',--CH.dbd.C(R')--COR和--X--C(R')(R")--COR中选择的一种基团,其中,R,R'和R"如上所定义,而X为--O--,--S--或--NH--,其余如上(a)中所定义;R.sub.5是氢,C.sub.1-C.sub.6烷基,C.sub.3-C.sub.6环烷基,或苯环或3-吡啶基,其中苯环或吡啶环是未取代的或被1至3个羟基和C.sub.1-C.sub.4烷氧基中的一个取代;或其药学上可接受的盐表现出作为血管扩张剂或血小板聚集抑制剂的药理活性。此外,这些化合物及其药学上可接受的盐在偏头痛、糖尿病微血管病、类风湿性关节炎、高血压、消化性溃疡、骨质疏松症、心绞痛、动脉粥样硬化和脂质代谢异常的治疗中有用。