2-[(2R,4aR,6S,7R,8aS)-2-(4-methoxyphenyl)-7-[2-[(2R,3S,5R,6S)-3-[(Z)-2-[(R)-(4-methylphenyl)sulfinyl]ethenoxy]-5-phenylmethoxy-6-(2-phenylmethoxyethyl)oxan-2-yl]-1-phenylselanylethoxy]-4,4a,6,7,8,8a-hexahydropyrano[3,2-d][1,3]dioxin-6-yl]ethoxy-tert-butyl-diphenylsilane 在
三乙基硼 、
三正丁基氢锡 作用下,
以
苯 为溶剂,
以39%的产率得到2-[(2R,4aR,6S,7R,8aS)-7-[[(2S,3S,4aR,6S,7R,8aS)-2-[[(R)-(4-methylphenyl)sulfinyl]methyl]-7-phenylmethoxy-6-(2-phenylmethoxyethyl)-2,3,4,4a,6,7,8,8a-octahydropyrano[3,2-b]pyran-3-yl]oxy]-2-(4-methoxyphenyl)-4,4a,6,7,8,8a-hexahydropyrano[3,2-d][1,3]dioxin-6-yl]ethoxy-tert-butyl-diphenylsilane