[(4-amino-benzyl)-tert-butoxycarbonylmethylamino]acetic acid tert-butyl ester 、
4,4'-(cyclopent-1-ene-1,2-diyl)bis(5- methylthiophene-2-carbonyl chloride) 在
三乙胺 作用下,
以
四氢呋喃 为溶剂,
以0.8 g的产率得到{[4-({4-[2-(5-{4-[(bis-tert-butoxycarbonylmethylamino)methyl]phenylcarbamoyl}-2-methylthiophen-3-yl)cyclopent-1-enyl]-5-methylthiophene-2-carbonyl}amino)benzyl]tert-butoxycarbonylmethylamino}acetic acid tert-butyl ester