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US06797831B2 Process for lactonization to produce simvastatin 失效
内酯化生产辛伐他汀的方法

Process for lactonization to produce simvastatin
摘要:
There is disclosed a process for the manufacture of simvastatin of Formula I which comprises heating a compound, namely acid or ammonium salt of compound of Formula II, where Z is H or NH4 in an organic solvent at a temperature of 130-140° C.
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