申请人:Roussel Uclaf
公开号:US04532243A1
公开(公告)日:1985-07-30
Novel imidazo[1,2-a]pyrimidines of the formula ##STR1## wherein R is selected from the group consisting of alkyl of 1 to 8 carbon atoms, alkenyl of 2 to 8 carbon atoms, cycloalkyl of 3 to 7 carbon atoms, cycloalkylalkyl of 4 to 12 carbon atoms, aryl of 6 to 12 carbon atoms, thienyl and pyridyl, each of said group being optionally substituted with at least one member of the group consisting of halogen, alkyl of 1 to 5 carbon atoms, alkoxy and alkylthio of 1 to 5 carbon atoms, trifluoromethyl, amino, alkylamino of 1 to 5 alkyl carbon atoms and dialkylamino with alkyl of 1 to 5 carbons atoms, R.sub.1 and R.sub.2 are individually selected from the group consisting of hydrogen, alkyl of 1 to 8 carbon atoms, alkenyl of 2 to 5 carbon atoms, cycloalkyl of 3 to 7 carbon atoms, cycloalkylalkyl of 4 to 12 carbon atoms, benzyl and phenethyl, or taken together form alkylene of 3 to 5 carbon atoms, each of said groups being optionally substituted with at least one member of the group consisting of halogen, alkyl of 1 to 5 carbon atoms, alkoxy and alkylthio of 1 to 5 carbon atoms, trifluoromethyl, amino, alkylamino of 1 to 5 alkyl carbon atoms and dialkylamino with alkyls of 1 to 5 carbon atoms, X is selected from the group consisting of oxygen and sulfur and R.sub.3 is alkyl of 1 to 5 carbon atoms and their non-toxic, pharmaceutically acceptable acid addition salts, having anxiolytic activity and novel intermediates.
该专利涉及一类新型咪唑并[1,2-a]嘧啶化合物,其化学式为: ##STR1## 其中,R选自以下组:1到8个碳原子的烷基,2到8个碳原子的烯基,3到7个碳原子的环烷基,4到12个碳原子的环烷基烷基,6到12个碳原子的芳基,噻吩基和吡啶基,该组中的每个基都可以选自以下组的至少一个成员:卤素,1到5个碳原子的烷基,1到5个碳原子的烷氧基和烷硫基,三氟甲基,氨基,1到5个烷基碳原子的烷基氨基和1到5个碳原子的二烷基氨基。R1和R2分别选自以下组:氢,1到8个碳原子的烷基,2到5个碳原子的烯基,3到7个碳原子的环烷基,4到12个碳原子的环烷基烷基,苯甲基和苯乙基,或者一起形成3到5个碳原子的烷基,该组中的每个基都可以选自以下组的至少一个成员:卤素,1到5个碳原子的烷基,1到5个碳原子的烷氧基和烷硫基,三氟甲基,氨基,1到5个烷基碳原子的烷基氨基和1到5个碳原子的二烷基氨基。X选自以下组:氧和硫,R3为1到5个碳原子的烷基。该化合物具有抗焦虑活性,还涉及其新型中间体及其无毒、药学上可接受的酸加成盐。