申请人:Okada Makoto
公开号:US20130085127A1
公开(公告)日:2013-04-04
A heterocyclic compound useful as an antiallergic agent is provided.
A compound represented by the following formula (1) or a salt thereof:
wherein the ring A is a homocyclic or heterocyclic ring; the ring B is a heterocyclic ring which contains G and nitrogen atom N as constituent atoms thereof, wherein G is CH or N; R
1
is a carbonyl group or an alkylene group; R
2a
and R
2b
are an alkyl group, a cycloalkyl group, an aryl group, or a heterocyclic group; X is an oxygen atom or a sulfur atom; Z is a hydroxyl group, an alkoxy group, a cycloalkyloxy group, an aryloxy group, an aralkyloxy group, an amino group, or an N-substituted amino group; and n is 0 or 1; with the proviso that when the ring A is a benzene ring or when the ring B is a piperazine ring, R
1
is an alkylene group which may have a substituent.
提供一种作为抗过敏剂使用的杂环化合物。所述化合物由以下式(1)或其盐表示:其中环A是同环或杂环;环B是一个杂环,其中包含G和氮原子N作为其组成原子,其中G是CH或N;R1是一个羰基或一个烷基基团;R2a和R2b是烷基基团、环烷基基团、芳基团或杂环基团;X是一个氧原子或硫原子;Z是一个羟基、烷氧基、环烷氧基、芳氧基、芳基氧基、氨基或N-取代氨基;n为0或1;但条件是当环A为苯环或环B为哌嗪环时,R1是可能有取代基的烷基基团。