申请人:Takeda Chemical Industries, Ltd.
公开号:US04904690A1
公开(公告)日:1990-02-27
A novel chromone derivative having a strong antitumor activity of the general formula: ##STR1## wherein R.sup.1 is an unsaturated alkyl or cycloalkyl group having 3 to 7 carbon atoms; R.sup.2 is hydrogen atom or a halogen atom; R.sup.3 is hydrogen atom or a lower alkyl group; and X is carboxyl group, or its salt, ester or amide.
一种具有强烈抗肿瘤活性的新型咔喃衍生物,其一般式为:##STR1## 其中,R1为具有3至7个碳原子的不饱和烷基或环烷基;R2为氢原子或卤素原子;R3为氢原子或较低的烷基基团;X为羧基,或其盐、酯或酰胺。