6α-O-benzoyl chlorogenin 、
2,3,4-tri-O-benzoyl-α-L-rhamnopyranosyl-(1→4)-2,3,6-tri-O-benzoyl-1-(4-tolyl)thio-β-D-glucopyranoside 在
N-碘代丁二酰亚胺 、
silver trifluoromethanesulfonate 作用下,
以
二氯甲烷 为溶剂,
反应 12.0h,
以320 mg的产率得到[(2R,3R,4S,5R,6R)-4,5-dibenzoyloxy-6-[(1R,2S,4S,5'R,6R,7S,8R,9S,12S,13R,16S,18S,19S)-19-benzoyloxy-5',7,9,13-tetramethylspiro[5-oxapentacyclo[10.8.0.02,9.04,8.013,18]icosane-6,2'-oxane]-16-yl]oxy-3-[(2S,3R,4R,5S,6S)-3,4,5-tribenzoyloxy-6-methyloxan-2-yl]oxyoxan-2-yl]methyl benzoate