N-[4-[[4-(dimethylamino)phenyl](4-(5-oxo-6-aza-9-aza-1-oxanonyl)phenyl)methylene]-2,5-cyclohexadien-1-ylidene]-N-methylmethanaminium chloride 、
Cy3.29 在
O-(N-succinimidyl)-N,N,N',N'-tetramethyluronium tetrafluoroborate 、
N,N-二异丙基乙胺 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 1.0h,
以74%的产率得到1-{6-[(2-{[4-(4-{[4-(dimethylamino)phenyl][4-(dimethyliminio)cyclohexa-2,5-dien-1-ylidene]methyl}phenoxy)butanoyl]amino}ethyl)amino]-6-oxohexyl}-2-[(1E,3Z)-3-(1-ethyl-3,3-dimethyl-5-sulfonato-1,3-dihydro-2H-indol-2-ylidene)prop-1-en-1-yl]-3,3-dimethyl-3H-indolium-5-sulfonate