(2E,4E)-6-{(2R,5S,7R,8S)-2-Butyl-2-[(S)-1-(tert-butyl-dimethyl-silanyloxy)-prop-2-ynyl]-8-methyl-1,6-dioxa-spiro[4.5]dec-7-yl}-4-methyl-hexa-2,4-dien-1-ol 在
N-乙基哌啶 、 tin(II) trifluoromethanesulfonate 、
戴斯-马丁氧化剂 作用下,
以
吡啶 、
二氯甲烷 为溶剂,
反应 0.75h,
生成
(2R,3S,4E,6E)-8-[(2R,5S,8S,9R)-2-butyl-2-[(1S)-1-[tert-butyl(dimethyl)silyl]oxyprop-2-ynyl]-8-methyl-1,10-dioxaspiro[4.5]decan-9-yl]-3-hydroxy-2,6-dimethyl-1-[(4S)-4-propan-2-yl-2-sulfanylidene-1,3-oxazolidin-3-yl]octa-4,6-dien-1-one