4-[5-(tert-Butoxycarbonylmethylamino)pentyl]-3,5-dichloro-2-hydroxybenzoic acid 、 N-[3,5-Dichloro-2-hydroxy-4-(4-tert-butoxycarbonylmethylamino-butoxy)benzoyl]-L-phenylalanine methyl ester 、
L-苯丙氨酸甲酯盐酸盐 以86%的产率得到N-[4-(5-tert-Butoxycarbonylmethylaminopentyl)-3,5-dichloro-2-hydroxybenzoyl]-L-phenylalanine methyl ester