rac-2-But-3-enyloxy-3-(1H-indol-5-yl)-propionic acid methyl ester 、
4-(chloromethyl)-5-methyl-2-(o-tolyl)oxazole 以to give rac-2-but-3-enyloxy-3-[1-(5-methyl-2-o-tolyl-oxazol-4-ylmethyl)-1H-indol-5-yl]-propionic acid as light brown solid的产率得到rac-2-but-3-enyloxy-3-[1-(5-methyl-2-o-tolyl-oxazol-4-ylmethyl)-1H-indol-5-yl]-propionic acid