DL-4-(3,4-dimethyl-benzoyl-amino)-5-(di-n-pentylamino)-5-oxo-pentanoic acid methyl ester

3,4-dimethyl-N-benzoyl-DL-glutamic anhydride

二戊胺

3,4-二甲基苯-1-羰酰氯

DL-谷氨酸