The invention relates to a process for the synthesis of moguisteine that is ethyl ester of (R,S)-3-[2-[(2-methoxyphenoxy)methyl]-1,3-thiazolidin-3-yl]-3-oxypropanoic acid which comprises the steps of forming a new cyclic intermediate of formula 2-[(2-methoxyphenoxy)methyl]-1,3-dioxolane (4), forming (R,S)-2-[(2-methoxyphenoxy)methyl]-1,3-thiazolidine (6) and reacting this latter with monoethylmalonic acid (7) or a salt thereof. The moguisteine of the invention is obtained in high yield and purity.
该发明涉及一种合成莫古伊斯汀的过程,即(R,S)-3-[2-[(2-
甲氧基苯氧基)甲基]-1,3-
噻唑啉-3-基]-3-氧基
丙酸的
乙酯,包括以下步骤:形成新的环中间体二氧杂环
戊醚(4)的公式,形成(R,S)-2-[(2-
甲氧基苯氧基)甲基]-1,3-
噻唑啉(6),并将后者与单
乙基丙二酸(7)或其盐反应。该发明的莫古伊斯汀以高产率和纯度获得。