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4-甲基-2-(3-甲酰基-4-羟基苯基)-5-噻唑甲酸乙酯的合成工艺改进

Bao-jia HAN,Fan YANG,Xin-ying L(U),Shu-jing ZHOU

Fine Chemical Intermediates（2015）

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Abstract
以对羟基苯甲醛为原料,经氰化、硫代酰胺化、环合、甲酰化合成得非布索坦中间体4-甲基-2-(3-甲酰基-4-羟基苯基)-5-噻唑甲酸乙酯.对合成工艺进行了改进,总收率52.4％.合成方法简单易行,对仪器设备腐蚀性小,操作安全,节约成本,适于工业化生产.
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