[(1S,2S,3R,4S,7R,9S,10S,12R,13S,14R,15S)-1,4,12,15-tetrahydroxy-10,14,17,17-tetramethyl-11-oxo-9-triethylsilyloxy-6-oxatetracyclo[11.3.1.03,10.04,7]heptadecan-2-yl] benzoate 在
4-二甲氨基吡啶 、
N,N'-二环己基碳二亚胺 、 APTS 作用下,
以
甲醇 、
甲苯 为溶剂,
生成 [(1S,2S,3R,4S,7R,9R,10S,12R,13S,14R,15S)-1,4,9,12-tetrahydroxy-15-[(2R,3S)-2-hydroxy-3-[(2-methylpropan-2-yl)oxycarbonylamino]-3-phenylpropanoyl]oxy-10,14,17,17-tetramethyl-11-oxo-6-oxatetracyclo[11.3.1.03,10.04,7]heptadecan-2-yl] benzoate