(3S)-3-[tert-butyl(dimethyl)silyl]oxy-4-[(4S,6R)-6-[(2S,3S)-3-[tert-butyl(dimethyl)silyl]oxy-5-[(3,4-dimethoxyphenyl)methoxy]pentan-2-yl]-2-oxo-1,3-dioxan-4-yl]butanal 、
prop-2-enyl N-[(4R,6E,8S,10E,12S,14R,16R)-4,8,12,14,16-pentakis[[tert-butyl(dimethyl)silyl]oxy]-18-oxooctadeca-6,10-dienyl]carbamate 、 以
二氯甲烷 为溶剂,
反应 6.0h,
以409 mg的产率得到(7S)-7-C-((2R,4S,5E,8R,10S,12R,14S,15E,18S,19E,22R)-25-{[(allyloxy)carbonyl]amino}-2,10,12,14,18,22-hexakis{[tert-butyl(dimethyl)silyl]oxy}-4,8-dihydroxypentacosa-5,15,19-trien-1-yl)-3-O-[tert-butyl(dimethyl)silyl]-2,4,6-trideoxy-1-O-(3,4-dimethoxybenzyl)-4-methyl-5,7-O-(oxomethylene)-D-xylo-heptitol