A novel naphthyridine derivative showing high activity as a tachykinin receptor antagonist can be produced at high efficiency by reacting an acylating agent such as a carboxylic acid derivative with a compound represented by the formula (1):
wherein R1, R2 and R3 represent independently a hydrogen atom, a lower alkyl group, a lower alkoxyl group, an aryl group, a heteroaryl group, an amino group, etc., and X1 and X2 represent respectively a halogen atom.
一种新的
萘啉衍
生物,作为一种快速激肽受体拮抗剂表现出高活性,可以通过将酰化剂(如
羧酸衍
生物)与由式(1)表示的化合物发生反应,高效地生产。其中,R1、R2和R3分别独立地代表氢原子、低碳基团、低碳氧基团、芳基、杂芳基、
氨基等,X1和X2分别代表卤原子。