(2S)-5-amino-2-[({5-[bis(3-chlorophenyl)methyl]thiophen-2-yl}carbonyl)amino]pentanoic acid trifluoroacetate 、
乙醇 、
acetamide hydrochloride 以
三乙胺 为溶剂,
以to give (2S)-2-[({5-[bis(3-chlorophenyl)methyl]thiophen-2-yl}carbonyl)amino]-5-(ethanimidoylamino)pentanoic acid•TFA (131, 50 mg) as a white solid的产率得到(2S)-2-[({5-[bis(3-chlorophenyl)methyl]thiophen-2-yl}carbonyl)amino]-5-(ethanimidoylamino)pentanoic acid trifluoroacetate