申请人:FUJIREBIO Inc.
公开号:EP0672678A1
公开(公告)日:1995-09-20
Disclosed is an azapeptide derivative represented by the formula (I):
wherein A represents a direct bond, an α-amino acid or a residue of a dipeptide; R¹ represents a hydrogen atom or a protective group for a terminal amino group; R² represents a phenyl group or a phenyl group substituted by one or two substituents selected from the group consisting of a lower alkyl group, halogen atom, hydroxyl group which may be protected, nitro group, amino group which may be protected and perhalo lower alkyl group; and R³ represents a hydroxyl group or a protective group for a terminal carboxyl group,
and a salt thereof, and an agent for curing nervous inflammation of respiratory apparatus, asthma and bronchospasm comprising the azapeptide derivative represented by the formula (I) or a salt thereof as an active ingredient.
本发明公开了一种由式 (I) 代表的氮肽衍生物:
其中 A 代表直接键、α-氨基酸或二肽的残基;R¹ 代表氢原子或末端氨基的保护基团;R² 代表苯基或被一个或两个取代基取代的苯基,取代基团选自由低级烷基、卤素原子、可被保护的羟基、硝基、可被保护的氨基和全卤低级烷基组成的组;以及 R³ 代表羟基或末端羧基的保护基团、
及其盐,以及一种治疗呼吸器官神经性炎症、哮喘和支气管痉挛的制剂,其活性成分包括式(I)代表的氮肽衍生物或其盐。