发明名称 |
Dicarboxylic acid bis(3,5-dicarbamoyl-2,4,6-triiodoanilides) useful as x-ray contrast agents |
摘要 |
Dicarboxylic acid bis(3,5-dicarbamoyl-2,4,6-triiodoanilides) of the formula <IMAGE> wherein R1 is lower straight-chain or branched-chain mono- or polyhydroxyalkyl; R2 is hydrogen, lower alkyl or R1; R3 is hydrogen or lower alkyl; and X is a direct bond or straight-chain or branched-chain alkylene interrupted by one or more oxygen or substituted by hydroxy or lower alkyl, are useful in x-ray contrast media.
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申请公布号 |
US4239747(A) |
申请公布日期 |
1980.12.16 |
申请号 |
US19790002901 |
申请日期 |
1979.01.12 |
申请人 |
SCHERING AG |
发明人 |
PFEIFFER, HEINRICH;SPECK, ULRICH |
分类号 |
A61K31/135;A61K49/04;C07C67/00;C07C231/00;C07C231/02;C07C233/02;C07C233/12;C07C233/54;C07C233/56;C07C233/65;C07C235/16;C07C237/46;(IPC1-7):C07C103/78;A61K29/02;C07C63/24 |
主分类号 |
A61K31/135 |
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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