5-Hydroxyindole-3-carboxamide compounds represented by general formula (I),
may be the same or different, each represents a hydrogen atom or an aklyl, aryl, aralkyl or heteroaryl group, or R1 and R2, or R3 and R4, are bound to each other to form a heterocyclic ring togetherwith the adjacent nitrogen atom, R5 represents an alkyl group, R6 represents a hydrogen atom or an alkyl, cycloalkyl, aryl or aralkyl group, and X represents a hydrogen or halogen atom or a lower alkanoyl group) and acid addition salts thereof. These compounds are useful as diuretics or drugs for treating diseases of human circulatory organs.
通式 (I) 所代表的
5-羟基吲哚-3-甲酰胺化合物、
R1和R2或R3和R4相互结合,与相邻的氮原子一起形成杂环,R5代表烷基,R6代表氢原子或烷基、环烷基、芳基或芳烷基,X代表氢原子、卤素原子或低级烷酰基)及其酸加成盐。这些化合物可用作利尿剂或治疗人体循环器官疾病的药物。