发明名称 |
Способ получени 5-метокси-2-(4-метокси-3,5-диметил-2-пиридилметилтио)бензимидазола |
摘要 |
FIELD: organic chemistry, chemical technology. SUBSTANCE: invention relates to method for preparing 5-methoxy-2-(4-methoxy-3,5-dimethyl-2-pyridylmethylthio)- benzimidazole of the formula (I) that represents an intermediate product in synthesis of an antiulcer preparation omeprazole. Method involves interaction of 5-methoxy-2-mercaptobenzimidazole with 4- methoxy-3,5-dimethyl-2-chloropyridine in an aqueous-alcoholic alkaline mixture at heating. After termination of reaction the reaction mass is neutralized, treatment filtration with carbon is carried out, alcohol is distilled off and stirred for 4-8 h. EFFECT: simplified process, enhanced yield and purity of end product. 2 cl, 4 ex |
申请公布号 |
RU2002108324(A) |
申请公布日期 |
2004.01.20 |
申请号 |
RU20020108324 |
申请日期 |
2002.04.03 |
申请人 |
Федеральное государственное унитарное предпри тие "Государственный научный центр "Научно-исследовательский институт органических полупродуктов и красителей" |
发明人 |
Садовых Елизавета Георгиевна;Ломзакова Вера Ивановна;Горелик Михаил Викторович |
分类号 |
C07D401/12;C07D213/00;C07D235/00 |
主分类号 |
C07D401/12 |
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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