methyl (S)-3-(4-hydroxybenzoylamino)-2-(4-methanesulphonylpiperazin-1-yl)propanoate 、
4-甲氧基溴苄 以390 mg (100%) of methyl (S)-2-(4-methanesulphonylpiperazin-1-yl)-3-[4-(4-methoxybenzyloxy)benzoylamino]propanoate are obtained in the form of a colourless oil的产率得到methyl (S)-2-(4-methanesulphonylpiperazin-1-yl)-3-[4-(4-methoxybenzyloxy)benzoylamino]propanoate