Novel isoquinoline derivatives of the general formula ##STR1## wherein R represents a lower alkyl group, a lower cycloalkyl group, or a group of the formula ##STR2## in which R.sup.2 represents a hydrogen atom, a halogen atom, a methyl group, a trifluoromethyl group, a methoxy group, a methylamino group or a dimethylami no group; R.sup.1 represents a hydrogen atom or a lower alkyl group; and Y represents a carboxyl group, a cyano group, a carbamoyl group, a lower alkoxycarbonyl group or a lower alkylaminocarbonyl group; or a salt thereof; a process for the production thereof. The above compound is useful as an anti-inflammatory and analgesic agent.
                            新型
异喹啉衍
生物的一般公式为##STR1##其中R代表低碳烷基、低环烷基或公式##STR2##中的一种基团,其中R.sup.2代表氢原子、卤原子、甲基基团、三
氟甲基基团、甲氧基团、甲基
氨基基团或二甲基
氨基基团;R.sup.1代表氢原子或低碳烷基;Y代表羧基、
氰基、
氨甲酰基、低碳醇氧羰基或低碳烷基
氨基羰基;或其盐;以及其生产方法。上述化合物可用作抗炎和镇痛剂。