The invention relates to novel benzoquinolizines of the general formula (I) ##STR1## and the pharmaceutically acceptable acid addition salts thereof, wherein R.sup.1 and R.sup.2 which may be the same or different, each represent hydrogen, lower alkyl, lower alkoxy or halogen, R.sup.3 represents hydrogen, lower alkyl or aryl and R.sup.4 represents --SO.sub.2 R.sup.5 (where R.sup.5 is lower alkyl or aryl, --CONH.sub.2 or --CXNHR.sup.6 (where X is oxygen or sulphur and R.sup.6 is aryl or aryl.CO.--). The compounds have hypotensive activity.
                            本发明涉及一种新型苯并
喹啉化合物,其通式为(I) ##STR1##以及其药学上可接受的酸盐,其中R.sup.1和R.sup.2可以相同也可以不同,分别代表氢、低碳基、低氧基或卤素,R.sup.3代表氢、低碳基或芳基,R.sup.4代表--SO.sub.2R.sup.5(其中R.sup.5是低碳基或芳基)、--CONH.sub.2或--CXNHR.sup.6(其中X是氧或
硫,R.sup.6是芳基或芳基.CO.--)。这些化合物具有降压活性。