发明名称 |
Benzopyran derivatives and antiallergic agent containing the same |
摘要 |
<p>The present invention provides a compound which is highly safe in terms of toxicity and has a stronger antiallergic action, and particularly has an action of inhibiting both immediate and delayed type allergic reactions. A benzopyran derivative represented by the general formula (I): <CHEM> wherein R<1> is an alkyl group having 1-10 carbon atoms or an alkenyl group having 2-10 carbon atoms, and one of R<2>, R<3>, R<4>, and R<5> is an alkoxy group substituted with a hydroxy group or an alkoxy group substituted with a carboxy group, and the others are hydrogen atoms or physiologically acceptable salts thereof are superior as the active ingredient of an antiallergic agent.</p> |
申请公布号 |
EP1273578(A1) |
申请公布日期 |
2003.01.08 |
申请号 |
EP20020013958 |
申请日期 |
2002.06.25 |
申请人 |
DAINIPPON INK AND CHEMICALS, INC. |
发明人 |
TAKAGAKI, HIDETSUGU;TANABE, SHINGO;KIMURA, NOBUYUKI;AOKI, YASUO |
分类号 |
C07D311/56;A61K31/37;A61P37/00;A61P37/08;(IPC1-7):C07D311/56 |
主分类号 |
C07D311/56 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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