申请人:Takeda Chemical Industries, Ltd.
公开号:US05270308A1
公开(公告)日:1993-12-14
A new compound of the formula: ##STR1## wherein ##STR2## is an optionally substituted benzene ring; R.sup.1 is a carbocyclic or heterocyclic group which is linked to the 4-position of the 1,3-benzoxazine ring through a carbon-carbon bond, a hydrocarbon residue, etc.; and R.sup.2 and R.sup.3 are independently a hydrogen atom or an optionally substituted C.sub.1-6 alkyl group, etc., or a salt thereof is useful for treating and preventing heart, circulatory, respiratory and cerebral diseases.
一种新的化合物,其化学式为:##STR1## 其中 ##STR2## 是一个可选取代的苯环;R.sup.1 是一个碳环或杂环基团,通过碳-碳键、烃残基等与1,3-苯并噁嗪环的4-位相连;R.sup.2 和R.sup.3 分别是氢原子或可选取代的C.sub.1-6烷基基团等,或其盐,用于治疗和预防心脏、循环、呼吸和脑部疾病。