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US07288652B2 Method for preparing oltipraz 有权
奥替普拉的制备方法

Method for preparing oltipraz
摘要:
Provided is a method for preparing oltipraz. The method includes reacting methyl 2-methyl-3-(pyrazin-2-yl)-3oxopropionate with phosphorus pentasulfide in the presence of a mixed solvent of toluene and xylene, followed by recrystallization.
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