1-O-tert-butyl 2-O-[(E,3S,4R)-1-[(1R,3R,4R)-4-[tert-butyl(diphenyl)silyl]oxy-3-methoxycyclohexyl]-4-[(4S,6R,9R)-9-hydroxy-2,2-dimethyl-1,3,7-trioxaspiro[5.5]undec-10-en-4-yl]-2-methylpent-1-en-3-yl] (2S)-piperidine-1,2-dicarboxylate 在
戴斯-马丁氧化剂 作用下,
以
二氯甲烷 为溶剂,
反应 0.75h,
以94%的产率得到1-O-tert-butyl 2-O-[(E,3S,4R)-1-[(1R,3R,4R)-4-[tert-butyl(diphenyl)silyl]oxy-3-methoxycyclohexyl]-4-[(4S,6R)-2,2-dimethyl-9-oxo-1,3,7-trioxaspiro[5.5]undec-10-en-4-yl]-2-methylpent-1-en-3-yl] (2S)-piperidine-1,2-dicarboxylate