申请人:ONO PHARMACEUTICAL CO., LTD.
公开号:EP0339496A2
公开(公告)日:1989-11-02
A aminoguanidine derivatives of the general formula:
(wherein, R1b represents a hydrogen atom, alkyl group of from 1 to 6 carbon atom(s), cycloalkyl group of from 5 to 7 carbon atoms or carbocyclic or heterocyclic ring unsubstituted or substituted by from one to three halogen atom(s), alkyl group(s) of from 1 to 4 carbon atom(s), alkoxy group(s) of from 1 to 4 carbon atom(s) or nitro group, Xb represents a bond, alkylene group of from 1 to 4 carbon atom(s) or alkenylene group of from 2 to 4 carbon atoms,
R2b represents a hydrogen atom, alkyl group of from 1 to 6 carbon atom(s) or phenyl group,
R3b represents a hydrogen atom, phenyl group, alkyl group of from 1 to 4 carbon atom(s), phenylalkyl group of from 7 to 10 carbon atoms or pyridyl group
represents a heterocyclic ring, which contains nitrogen atom or one nitrogen and one oxygen atom, of from 3 to 10 carbon atoms unsubstituted or substituted by a hydroxy group.
With the proviso that the compounds wherein R2b represents a hydrogen atom, -Xb-R1b represents a hydrogen atom, methyl group, ethyl group or phenyl group and R3b represents a hydrogen atom or methyl group, are excluded.) or acid addition salt thereof possess inhibitory activity on Maillard reaciton, and therefore is useful for treating and/or prevention of several diabetic complications and diseases induced by aging.
通式如下的氨基胍衍生物
(其中,R1b 代表氢原子、1 至 6 个碳原子的烷基、5 至 7 个碳原子的环烷基或未被取代或被 1 至 3 个卤素原子、1 至 4 个碳原子的烷基、1 至 4 个碳原子的烷氧基或硝基取代的碳环或杂环,Xb 代表键、1 至 4 个碳原子的亚烷基或 2 至 4 个碳原子的亚烯基、
R2b 代表氢原子、1-6 个碳原子的烷基或苯基、
R3b 代表氢原子、苯基、1 至 4 个碳原子的烷基、7 至 10 个碳原子的苯基烷基或吡啶基
代表含有氮原子或一个氮原子和一个氧原子的杂环,其碳原子数为 3 至 10 个,未被羟基取代或被羟基取代。
但 R2b 代表氢原子,-Xb-R1b 代表氢原子、甲基、乙基或苯基,R3b 代表氢原子或甲基的化合物除外)或其酸加成盐具有抑制 Maillard 反应的活性,因此可用于治疗和/或预防多种糖尿病并发症和衰老引起的疾病。