1-O-tert-butyl 2-O-[(2R,3S,6R,7E,9R,10R,12R,14S,15E,17E,19E,21S)-1-[(1S,3R,4R)-4-[tert-butyl(dimethyl)silyl]oxy-3-methoxycyclohexyl]-10,21-dimethoxy-2,6,8,12,14,20-hexamethyl-22-[(2S,5R)-5-methyl-6-oxooxan-2-yl]-5,11-dioxo-9-triethylsilyloxydocosa-7,15,17,19-tetraen-3-yl] (2S)-piperidine-1,2-dicarboxylate 在
臭氧 、
二甲基硫 作用下,
以
二氯甲烷 为溶剂,
以40%的产率得到1-(tert-butyl) 2-((2R,3S,6R,7E,9R,10R,12R,14S,15E)-1-((1S,3R,4R)-4-((tert-butyldimethylsilyl)oxy)-3-methoxycyclohexyl)-10-methoxy-2,6,8,12,14-pentamethyl-5,11,17-trioxo-9-((triethylsilyl)oxy)heptadeca-7,15-dien-3-yl) (S)-piperidine-1,2-dicarboxylate