1-[3-(2,5-dichloro-4-{[2-(4-cyclopropyl-1,2,3,4-tetrahydroquinoxaline-1-carbonyl)thiophen-3-yl]oxy}phenyl)-N-methylpropanamido]-3,6,9,12,15,18-hexaoxahenicosan-21-oic acid 、
三羟甲基氨基甲烷 在
三乙胺 、 N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate 作用下,
以
二氯甲烷 为溶剂,
以63%的产率得到1-[3-(2,5-dichloro-4-{[2-(4-cyclopropyl-1,2,3,4-tetrahydroquinoxaline-1-carbonyl)thiophen-3-yl]oxy}phenyl)-N-methylpropanamido]-N-[1,3-dihydroxy-2-(hydroxymethyl)propan-2-yl]-3,6,9,12,15,18-hexaoxahenicosan-21-amide