[(2S,3R,4S,5R,6R)-2-[(2R,3R,4S,5S,6R)-5-acetyloxy-6-methyl-2-[(4S)-non-1-en-4-yl]oxy-4-phenylmethoxyoxan-3-yl]oxy-4-[tert-butyl(dimethyl)silyl]oxy-5-hydroxy-6-(hydroxymethyl)oxan-3-yl] 2-chloroacetate 、
4-oxo-8-nonenoic acid 在
4-二甲氨基吡啶 、
4-(dimethylamino)pyridine hydrochloride 、
N,N'-二环己基碳二亚胺 作用下,
以
二氯甲烷 为溶剂,
以85%的产率得到[(2R,3R,4S,5R,6S)-6-[(2R,3R,4S,5S,6R)-5-acetyloxy-6-methyl-2-[(4S)-non-1-en-4-yl]oxy-4-phenylmethoxyoxan-3-yl]oxy-4-[tert-butyl(dimethyl)silyl]oxy-5-(2-chloroacetyl)oxy-3-hydroxyoxan-2-yl]methyl 4-oxonon-8-enoate