Comprising reacting compound (IV) with compound (V) in a solvent to give (S)-mitiglinide (II) and compound (III) as a by- product; removing the solvent and adding ethyl acetate to precipitate compound (III); collecting the solid and applying at least one cycle process comprising: - refluxing the solution of compound (III) with an organic solvent to give (S)-mitiglinide (II) and further compound (III) as a by-product, - removing the organic solvent and adding ethyl acetate to precipitate compound (III); and - separating the mother liquors from the solid, and mixing all the mother liquors; removing the ethyl acetate from the mother liquors to obtain (S)-mitiglinide.
将化合物(IV)与化合物(V)在溶剂中反应,得到(S)-米格林肽(II)和化合物(III)作为副产物;去除溶剂并加入
乙酸乙酯以沉淀化合物(III);收集固体并应用至少一个循环过程,包括:- 用有机溶剂回流化合物(III)的溶液,得到(S)-米格林肽(II)和进一步的化合物(III)作为副产物,- 去除有机溶剂并加入
乙酸乙酯以沉淀化合物(III);- 将母液与固体分离,并混合所有母液;从母液中去除
乙酸乙酯以获得(S)-米格林肽。