[rac]-2-ethoxy-3-(4-hydroxy-3-methoxy-phenyl)-propionic acid ethyl ester 、
2-(5-甲基-2-苯基-1,3-恶唑-4-基)-1-乙醇 、
三苯基膦 、
偶氮二甲酸二叔丁酯 以to yield [rac]-2-ethoxy-3-{3-methoxy-4-[2-(5-methyl-2-phenyl-oxazol-4-yl)-ethoxy]-phenyl}-propionic acid ethyl ester as colorless oil的产率得到[rac]-2-ethoxy-3-{3-methoxy-4-[2-(5-methyl-2-phenyl-oxazol-4-yl)-ethoxy]-phenyl}-propionic acid ethyl ester