methyl 2(S)-ethoxy-3-{4-[2-(1-methyl-3-pentylureido)thiazol-5-yl]phenyl}propanoate 、
氢氧化锂 以0.05 g (86%) of 2(S)-ethoxy-3-{4-[2-(1-methyl-3-pentylureido)thiazol-5-yl]phenyl}propanoic acid is obtained in the form of a white solid with a melting point of 114° C.的产率得到2(S)-ethoxy-3-{4-[2-(1-methyl-3-pentylureido)thiazol-5-yl]phenyl}propanoic acid