p-tolyl 2,6-O-dibenzoyl-3-O-benzyl-1-thio-β-D-glucopyranoside 、 benzyl (2S,3S,4S,5R)-5-benzoyloxy-4-(4-oxopentanoyloxy)-3-phenylmethoxy-6-[N-phenyl-C-(trifluoromethyl)carbonimidoyl]oxyoxane-2-carboxylate 在
N-碘代丁二酰亚胺 、
三氟甲磺酸 作用下,
以
二氯甲烷 为溶剂,
以68%的产率得到benzyl (2S,3S,4S,5R,6R)-5-benzoyloxy-6-[(2R,3R,4S,5R,6S)-5-benzoyloxy-2-(benzoyloxymethyl)-6-(4-methylphenyl)sulfanyl-4-phenylmethoxyoxan-3-yl]oxy-4-(4-oxopentanoyloxy)-3-phenylmethoxyoxane-2-carboxylate