N-[m-(p-amidinobenzamido)benzoyl]-3-(t-butoxycarbonyl)-L-alanine methyl ester 、 trifluoracetic acid-dichloromethane 在
乙醇乙醚 作用下,
反应 3.0h,
以is obtained (S)-3-[m-(p-amidinobenzamido)benzamido]-3-(methoxycarbonyl)propionic acid trifluoroacetate in the form of a colourless solid的产率得到(S)-3-[m-(p-amidinobenzamido)benzamido]-3-(methoxycarbonyl)propionic acid trifluoroacetate