4-amino-N-[[1-[(4-methoxyphenyl)methyl]cyclopentyl]carbonyl]-L-phenylalanine methyl ester 、
邻硝基苯甲酸 以to give 22 mg of N-[[1-[(4-methoxyphenyl)methyl]cyclopentyl]carbonyl]-4-[[(2-nitrophenyl)carbonyl]amino]-L-phenylalanine, HR—FAB—MS的产率得到N-[[1-[(4-methoxyphenyl)methyl]cyclopentyl]carbonyl]-4-[[(2-nitrophenyl)carbonyl]amino]-L-phenylalanine