Novel imidazo[1,2-c]pyrimidines of the formula ##STR1## wherein R is an aryl of 6 to 12 carbon atoms, R.sub.1 is selected from the group consisting of hydrogen and alkyl, alkoxy and alkylthio of 1 to 5 carbon atoms when R.sub.2 and R.sub.3 together form a carbon-nitrogen bond or R.sub.1 and R.sub.2 together are .dbd.0 when R.sub.3 is selected from the group consisting of hydrogen, alkyl of 1 to 5 carbon atoms and alkenyl of 2 to 5 carbon atoms, R.sub.4 is selected from the group consisting of alkoxy and alkylthio of 1 to 5 carbon atoms, R.sub.5 is selected from the group consisting of hydrogen and alkyl of 1 to 5 carbon atoms and their non-toxic, pharmaceutically acceptable acid addition salts having anxiolytic properties.
化合物为式##STR1##的新型
咪唑并[1,2-c]
嘧啶,其中R为含有6至12个碳原子的芳基,R.sub.1从氢和烷基、1至5个碳原子的烷氧基和烷
硫基中选择,当R.sub.2和R.sub.3共同形成碳氮键或R.sub.1和R.sub.2共同为.dbd.0时,R.sub.3从氢、1至5个碳原子的烷基和2至5个碳原子的烯基中选择,R.sub.4从1至5个碳原子的烷氧基和烷
硫基中选择,R.sub.5从氢和1至5个碳原子的烷基中选择,以及它们的无毒、药学上可接受的酸盐,具有抗焦虑作用。