3-Hydroxy-2-hydroxymethyl-2-methyl-propionic acid 2-{2-[2-(2-tert-butoxycarbonylamino-ethoxy)-ethoxy]-ethoxy}-ethyl ester 、
4-[(S)-2-(Indan-5-ylcarbamoyl)-pyrrolidin-1-yl]-4-oxo-butyric acid 2-carboxy-3-{4-[(S)-2-(indan-5-ylcarbamoyl)-pyrrolidin-1-yl]-4-oxo-butyryloxy}-2-methyl-propyl ester 在
N,N'-二环己基碳二亚胺 、
DPTS 作用下,
以
二氯甲烷 为溶剂,
生成 [2-[[3-[4-[(2S)-2-(2,3-dihydro-1H-inden-5-ylcarbamoyl)pyrrolidin-1-yl]-4-oxobutanoyl]oxy-2-[[4-[(2S)-2-(2,3-dihydro-1H-inden-5-ylcarbamoyl)pyrrolidin-1-yl]-4-oxobutanoyl]oxymethyl]-2-methylpropanoyl]oxymethyl]-2-methyl-3-[2-[2-[2-[2-[(2-methylpropan-2-yl)oxycarbonylamino]ethoxy]ethoxy]ethoxy]ethoxy]-3-oxopropyl] 3-[4-[(2S)-2-(2,3-dihydro-1H-inden-5-ylcarbamoyl)pyrrolidin-1-yl]-4-oxobutanoyl]oxy-2-[[4-[(2S)-2-(2,3-dihydro-1H-inden-5-ylcarbamoyl)pyrrolidin-1-yl]-4-oxobutanoyl]oxymethyl]-2-methylpropanoate