发明名称 |
PROCEDIMIENTO DE OBTENCION DE 2, 6-DIMETIL-4-(3-NITROFENIL)-1, 4-DIHIDROPIRIDIN-3-CARBOXILATO DE ISOPROPILO-5-CARBOXILATO DE 2-METOXIETILO |
摘要 |
<p>phenyl) 1,4-dihydro pyridine 3,5-dicarboxylic acid ester with one isopropyl and one 2-methoxy ethyl ester gp. is made by trans-esterification of isopropyl or 2-methoxy ethyl 2,6-diemthyl 4-(3'-nitrophenyl) 1,4-dihydro pyridine dicarboxylate with 2-methoxy ethanol or isopropanol respectively. Reaction is in an inert non-alcoholic organic solvent in presence of an acid or basic catalyst at -20 to 140 deg. C. The 1,4-dihydro pyridine salt formed is treated with a basic inorganic medium.</p> |
申请公布号 |
ES534273(D0) |
申请公布日期 |
1985.10.16 |
申请号 |
ES19730005342 |
申请日期 |
1984.07.13 |
申请人 |
LABORATORIO FARMACEUTICO QUIMICO, LAFARQUIM, S.A. |
发明人 |
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分类号 |
A61K31/44;C07D211/86;(IPC1-7):C07D211/86 |
主分类号 |
A61K31/44 |
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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