[(2S,3R,4S,5R,6R)-2-[[(3aS,4R,6R,7R,7aS)-2,2,4-trimethyl-6-[(4S)-non-1-en-4-yl]oxy-4,6,7,7a-tetrahydro-3aH-[1,3]dioxolo[4,5-c]pyran-7-yl]oxy]-3-[tert-butyl(dimethyl)silyl]oxy-5-[(Z)-3-[dimethyl(phenyl)silyl]-3-phenylprop-2-enoyl]oxy-6-(hydroxymethyl)oxan-4-yl] (E)-2-methylbut-2-enoate 、
4-oxo-8-nonenoic acid 在
2,4,6-三氯苯甲酰氯 、
三乙胺 、
4-二甲氨基吡啶 作用下,
以
甲苯 、
二氯甲烷 为溶剂,
反应 3.5h,
以72 mg的产率得到[(2R,3R,4S,5R,6S)-6-[[(3aS,4R,6R,7R,7aS)-2,2,4-trimethyl-6-[(4S)-non-1-en-4-yl]oxy-4,6,7,7a-tetrahydro-3aH-[1,3]dioxolo[4,5-c]pyran-7-yl]oxy]-5-[tert-butyl(dimethyl)silyl]oxy-3-[(Z)-3-[dimethyl(phenyl)silyl]-3-phenylprop-2-enoyl]oxy-4-[(E)-2-methylbut-2-enoyl]oxyoxan-2-yl]methyl 4-oxonon-8-enoate