申请人:Takeda Chemical Industries, Ltd.
公开号:US04978761A1
公开(公告)日:1990-12-18
The present invention relates to a compound of the formula: ##STR1## wherein R.sup.1 is hydrogen or a lower alkyl; R.sup.2 is methyl which is substituted by a carboxy, alkoxycarbonyl, cyano, halogen, aryl or heterocyclic group of C.sub.2-15 chain hydrocarbon residue having no lower alkyl at the .alpha.-position which may be substituted by a carboxy, alkoxycarbonyl, cyano, halogen, aryl or heterocyclic group; R.sup.3 is a lower alkyl; R.sup.4 is hydrogen or acyl; and R.sup.5 and R.sup.6 each is a lower alkyl or lower alkoxy, or R.sup.5 and R.sup.6 combinedly are butadienylene or a salt thereof. The compound (I) of the present invention has a strong 5- and 12-lipoxygenase inhibiting action, is of high safety and is useful as, among others, an agent for ameliorating dysfunction circulatory system, an anti-allergic agent and a pharmaceutical agent for central nervous system.
本发明涉及一种化合物,其化学式为:##STR1## 其中,R.sup.1是氢或较低的烷基;R.sup.2是甲基,其被羧基、烷氧羰基、氰基、卤素、芳基或杂环基的C.sub.2-15链烃基残基取代,该残基在.alpha.-位置上没有较低的烷基,但可以被羧基、烷氧羰基、氰基、卤素、芳基或杂环基取代;R.sup.3是较低的烷基;R.sup.4是氢或酰基;R.sup.5和R.sup.6分别是较低的烷基或较低的烷氧基,或者R.sup.5和R.sup.6组合起来是丁二烯基或其盐。本发明的化合物(I)具有强烈的5-和12-脂氧合酶抑制作用,具有高安全性,并可用作改善功能性循环系统、抗过敏剂和中枢神经系统药物等方面的药剂。