申请人:Takeda Chemical Industries, Ltd.
公开号:US05492909A1
公开(公告)日:1996-02-20
A compound of the formula: ##STR1## wherein R.sup.1 is a hydrogen atom, a lower alkyl group or a halogen atom; R.sup.2 and R.sup.3 are a hydrogen atom, a lower alkyl group or a 5- to 7-membered cyclic group formed together with the adjacent --C.dbd.C--; X is an oxygen atom, a sulfur atom or a methylene group; Y is an optionally substituted methylene group, a divalent 3- to 7-membered homo- or heterocyclic group; R.sup.6 and R.sup.7 are a hydrogen atom, a lower alkyl group, a cycloalkyl group, an aryl group, or a nitrogen-containing heterocyclic group formed together With the adjacent nitrogen atom; m is an integer of 0 to 4; and n is an integer of 0 to 4, or a salt thereof. Said compound has an excellent anti-PAF activity, antiallergic action, etc., thus is useful as an antiasthmatic agent.
该化合物的化学式为:##STR1## 其中R.sup.1是氢原子、低碳基或卤素原子;R.sup.2和R.sup.3是氢原子、低碳基或与相邻的--C.dbd.C--一起形成的5-至7-成员环状基团;X是氧原子、硫原子或亚甲基基团;Y是可选取代的亚甲基基团、二价的3-至7-成员同源或异源环状基团;R.sup.6和R.sup.7是氢原子、低碳基、环状碳基、芳基或与相邻氮原子一起形成的含氮杂环基团;m是0至4的整数;n是0至4的整数,或其盐。该化合物具有优异的抗PAF活性、抗过敏作用等,因此可用作抗哮喘剂。