申请人:WARNER-LAMBERT COMPANY
公开号:EP0092380A2
公开(公告)日:1983-10-26
Novel 4H-furo[3,2-b]indoles which are useful for treating allergies are disclosed. Also disclosed are a process for preparing the indoles and pharmaceutical compositions containing the indoles. the indoles have the following formula I:
wherein R is a hydrogen atom, an alkyl radical having from one to six carbon atoms, an alkoxy radical having from one to six carbon atoms, a halogen atom or a nitro group; R' is an alkyl radical having from one to six carbon atoms, or a phenyl or benzyl radical; R2 is an alkyl radical having from one to six carbon atoms; R3 is (a) -COOA wherein A is a hydrogen atom, an alkyl radical having from one to six carbon atoms, or a pharmaceutically acceptable metal or amine cation,
or a pharmaceutically acceptable salt thereof; with the proviso that when R = hydrogen and R' = R2 = methyl, R3 is not COOA.
本发明公开了可用于治疗过敏症的新型 4H-呋喃并[3,2-b]吲哚。还公开了制备这些吲哚和含有这些吲哚的药物组合物的工艺。这些吲哚具有下式 I:
其中 R 是氢原子、一至六个碳原子的烷基、一至六个碳原子的烷氧基、卤素原子或硝基; R' 是一至六个碳原子的烷基或苯基或苄基; R2 是一至六个碳原子的烷基; R3 是 (a) -COOA 其中 A 是氢原子、一至六个碳原子的烷基或药学上可接受的金属或胺阳离子、
或其药学上可接受的盐;但当 R = 氢和 R' = R2 = 甲基时,R3 不是 COOA。