Pyrido[l,2-a]pyrimidine derivatives of the general formula [I] and their physiologically acceptable salts are provided:
where R is a hydrogen atom, a halogen atom or a methyl group, and n is a whole numter of 0, l or 2. The pyrido[l,2-a]-pyrimidine derivatives and their salts exhibit an excellent antagonistic effect on the slow-reacting substance of anaphylaxis and, therefore, are useable for the treatment of allergic diseases.
提供通式[I]的
吡啶并[l,2-a]
嘧啶衍
生物及其生理上可接受的盐类:
其中 R 是氢原子、卤素原子或甲基,n 是 0、l 或 2 的整数。
吡啶并[l,2-a]
嘧啶衍
生物及其盐类对过敏性休克的慢反应物质有很好的拮抗作用,因此可用于治疗过敏性疾病。