反应详情

In analogy to the procedures described in examples 36a) and 36b), rac-2-ethoxy-3-(2-methyl-1H-indol-5-yl)-propionic acid ethyl ester (preparation 5) was reacted with 4-chloromethyl-2-(4-isopropyl-phenyl)-5-methyl-oxazole to give rac-2-ethoxy-3-{1-[2-(4-isopropyl-phenyl)-5-methyl-oxazol-4-ylmethyl]-2-methyl-1H-indol-5-yl}-propionic acid ethyl ester, which was subsequently saponified to yield the title compound as colorless oil.