N-羟基丁二酰亚胺 、
(9-carboxypropyl-8,9-dihydro-8,8-dimethyl-6-sulfomethyl-2H-pyrano[3,2-g]quinolin-2-one)-3-[4-(pyrid-1-ium)-(3´,3´,4´,4´-tetrafluoro-2´-oxido-5´-oxo-1-cyclopentene-1-yl)betaine] 在
三乙胺 、
Methanaminium,N-[(dimethylamino)(3H-1,2,3-triazolo[4,5-b]pyridin-3-yloxy)methylene]-N-methyl-, hexafluorophosphate(1-) 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 16.0h,
以71%的产率得到(8,9-dihydro-8,8-dimethyl-9-(N-succinimidyl)oxycarbonylpropyl-6-sulfomethyl-2H-pyrano[3,2-g]-quinolin-2-one)-3-[4-(pyridin-1-ium)-(3´,3´,4´,4´-tetrafluoro-2´-oxido-5´-oxo-1-cyclopentene-1-yl)betaine]