L-Alanyl-L-glutamine(Dipeptiven) was prepared in 10 t/a pilot-plant-scale by using phthalyl method and mixed anhydride method.

• 以邻苯二甲酰基为保护基,采用混合酸酐法接肽,中试规模制备了L-丙氨酰-L-谷氨酰胺(力肽)。