N-(N-(对氯苯甲酰基)-4-(2,6-二甲基苯胺基)丁酰基)-4-(对甲氧苯胺基)丁酸

N-(N-(4-氯苯甲酰基)-4-(2,6-二甲基苯胺基)丁酰基)-4-(2,6-二甲基苯胺基)丁酸

methyl N-[N-(p-chlorobenzoyl)-4-(2,6-dimethylanilino)butyryl]-4-aminobutyrate

4-[4-(N-(4-chlorobenzoyl)-2,6-dimethylanilino)butanoylamino]butanoic acid

ethyl N-[N-(p-chlorobenzoyl)-4-(2,6-dimethylanilino)butyryl]sarcosinate