4-((4-(2-(2-(allyloxy)-4-(2-hydroxyacetamido)phenyl)-2H-tetrazol-5-yl)phenyl)amino)-4-oxobutanoic acid 、
7-(β-alanyl)paclitaxel 在
N-羟基-7-氮杂苯并三氮唑 、
N,N'-二环己基碳二亚胺 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
以11 mg的产率得到[(1S,2S,3R,4S,7R,9S,10S,12R,15S)-4,12-diacetyloxy-15-[(2R,3S)-3-benzamido-2-hydroxy-3-phenylpropanoyl]oxy-1-hydroxy-9-[3-[[4-[4-[2-[4-[(2-hydroxyacetyl)amino]-2-prop-2-enoxyphenyl]tetrazol-5-yl]anilino]-4-oxobutanoyl]amino]propanoyloxy]-10,14,17,17-tetramethyl-11-oxo-6-oxatetracyclo[11.3.1.03,10.04,7]heptadec-13-en-2-yl] benzoate