Isatin derivatives, processes for the preparation thereof and pharmaceutical composition comprising the same
申请人:FUJISAWA PHARMACEUTICAL CO., LTD.
公开号:EP0010398A1
公开(公告)日:1980-04-30
The Isatin derivatives are compounds having the formula:-
wherein R1 and R2 are each hydrogen, halogen, lower alkyl, lower alkoxy, halo(lower)-alkyl, acylamino or heterocyclic group containing at least one imino group, or
R1 and R2 are combined together to form a benzene ring,
R3 is oxo or a group of the formula: =N-OR5, in which R5 is hydrogen or lower alkyl,
R4 is hydrogen; ar(lower)alkyl optionally having halogen, carboxy or esterified carboxy; aryl optionally having halogen; acyl; or 10, 11- dihydro-5H-dibenzo[a, d]- cycloheptenyl,
A is lower alkylene optionally having hydroxy and
Y is (C1 to C3) alkylene,
and their pharmaceutically acceptable salts. The compounds are prepared by the reaction of isatin or its substituted derivatives with suitable substituent group-containing compounds.
Pharmaceutical compositions containing the isatin derivatives or their pharmaceutically acceptable salts are useful for treating allergic symptoms.
靛红衍生物是具有以下式子的化合物
其中 R1 和 R2 分别为氢、卤素、低级烷基、低级烷氧基、卤代(低级)烷基、酰氨基或至少含有一个亚氨基的杂环基团,或
R1 和 R2 结合在一起形成苯环、
R3 是氧代或式中:=N-OR5 的基团,其中 R5 是氢或低级烷基、
R4 是氢;可选具有卤素、羧基或酯化羧基的 ar(低级)烷基;可选具有卤素的芳基;酰基;或 10,11-二氢-5H-二苯并[a,d]-环庚烯基、
A 是可选具有羟基的低级亚烷基,且
Y 是(C1 至 C3)亚烷基、
及其药学上可接受的盐类。这些化合物是通过异靛红或其取代衍生物与适当的含取代基化合物反应制备的。
含有伊沙替丁衍生物或其药学上可接受的盐的药物组合物可用于治疗过敏症状。