发明名称 |
NOVEL CLASS OF SPIRO-LINKED PYRROLIDINE-2,5-DIONES AND PREOARATION THEREOF |
摘要 |
The invention provides a novel spiro-linked pyrrolidine-2,5-dione of the formula;- <CHEM> wherein X1 and X2 each independently represent a hydrogen, a halogen atom, a lower alkyl or lower alkoxy group; Y is a methylene group, oxygen or sulfur atom; R1, R2, R3 and R4 each independently represent a hydrogen atom, a lower alkyl group or forming a benzene ring together with their adjacent carbon atoms; the base salts thereof with pharmaceutically acceptable cations, and processes for their manufactures. The compounds of formula [I] useful as aldose reductase inhibitors and as therapeutic agents for treatment of chronic diabetic complications are also disclosed. |
申请公布号 |
PH21187(A) |
申请公布日期 |
1987.08.12 |
申请号 |
PH19670000316 |
申请日期 |
1984.12.28 |
申请人 |
KYORIN PHARMACEUTICAL CO., LTD. |
发明人 |
IRIKURA TSUTOMU;TAKAGI KOICHI;HIRATA YOSHIHIRO;FUJIMORI SHIZUYOSHI |
分类号 |
A61K31/435;A61K31/475;A61K31/535;A61K31/54;A61P3/08;A61P3/10;A61P13/02;A61P15/00;A61P25/00;A61P25/08;A61P27/02;A61P43/00;C07D215/08;C07D265/36;C07D401/06;C07D413/06;C07D471/06;C07D471/20;C07D498/10;C07D498/20;C07D513/10;C07D513/20;C12N9/99 |
主分类号 |
A61K31/435 |
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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