[(2R,3S,4R,5R,6S)-6-[(2S,3R,4R,5S,6S)-3-acetyloxy-2-[(2S,3S,4R,5R,6S)-5-benzoyloxy-2-methyl-3-phenylmethoxy-6-(2,2,2-trichloroethanimidoyl)oxyoxan-4-yl]oxy-6-methyl-5-phenylmethoxyoxan-4-yl]oxy-3,4-dibenzoyloxy-5-(1,3-dioxoisoindol-2-yl)oxan-2-yl]methyl benzoate 、
allyl 3-O-(3-O-(3,4,6-tri-O-benzoyl-2-deoxy-2-phthalimido-β-D-glucopyranosyl)-4-O-benzyl-α-L-rhamnopyranosyl)-2-O-benzoyl-4-O-benzyl-α-L-rhamnopyranoside 在
4 A molecular sieve 、
三乙基硅基三氟甲磺酸酯 作用下,
以
二氯甲烷 为溶剂,
反应 0.17h,
以68%的产率得到[(2R,3S,4R,5R,6S)-6-[(2S,3R,4R,5S,6S)-3-[(2S,3R,4R,5S,6S)-4-[(2S,3R,4R,5S,6S)-3-acetyloxy-4-[(2S,3R,4R,5S,6R)-4,5-dibenzoyloxy-6-(benzoyloxymethyl)-3-(1,3-dioxoisoindol-2-yl)oxan-2-yl]oxy-6-methyl-5-phenylmethoxyoxan-2-yl]oxy-3-benzoyloxy-6-methyl-5-phenylmethoxyoxan-2-yl]oxy-2-[(2S,3S,4R,5R,6R)-5-benzoyloxy-2-methyl-3-phenylmethoxy-6-prop-2-enoxyoxan-4-yl]oxy-6-methyl-5-phenylmethoxyoxan-4-yl]oxy-3,4-dibenzoyloxy-5-(1,3-dioxoisoindol-2-yl)oxan-2-yl]methyl benzoate