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The invention relates to a synthesizing method of 2-amino-5,8-dimethoxy[1,2,4]-triazolo[1,5-c]-pyrimidine. The invention solves the problems such as low yield, high pollution, complicated operation,… (More)
The invention discloses a method for preparing Levetiracetam. In the method, L-threonine is used as a raw material to prepare the Levetiracetam through the steps including esterification,… (More)