This invention provides a process for preparing benzazepine compounds of the formula (1):
wherein X
1
is a halogen atom, R
1
and R
2
are a lower alkyl group, or salts thereof as well as intermediate benzoic acid compounds in high yield and high purity on industrial scale, which are useful as an intermediate for preparing a pharmaceutically active 2,3,4,5-tetrahydro-1H-1-benzazepine compound having vasopressin antagonistic activity.
本发明提供了一种制备苯并氮
杂环化合物的方法,其中该化合物的
化学式为(1):其中X1是卤素原子,R1和R2是较低的烷基,或其盐,以及中间体
苯甲酸化合物,具有高产率和高纯度的工业规模,这些化合物可用作制备具有利
尿素拮抗活性的2,3,4,5-四氢-1H-1-苯并氮
杂环化合物的中间体。