1-(pyridin-2-yldisulfanyl)-3,6,9,12,15,18,21,24-octaoxaheptacosan-27-oic acid 、 在
18-冠醚-6 、
potassium carbonate 作用下,
以
苯 为溶剂,
反应 2.0h,
以136 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-10,14,17,17-tetramethyl-11-oxo-9-[3-[2-[2-[2-[2-[2-[2-[2-[2-(pyridin-2-yldisulfanyl)ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]propanoyloxymethoxycarbonyloxy]-6-oxatetracyclo[11.3.1.03,10.04,7]heptadec-13-en-2-yl] benzoate