3,5-di-O-benzoyl-2-O-chloroacetyl-1-thio-α-D-arabinofuranoside 、
[(2R,3R,4S,5S)-4-benzoyloxy-2-[[(2S,3S,4R,5R)-3-benzoyloxy-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]oxymethyl]-5-(2-chloroethoxy)oxolan-3-yl] benzoate 在
N-碘代丁二酰亚胺 、
silver trifluoromethanesulfonate 作用下,
以
二氯甲烷 为溶剂,
反应 4.0h,
以84%的产率得到[(2R,3R,4S,5S)-3-benzoyloxy-5-[[(2R,3R,4S,5S)-4-benzoyloxy-3-[(2R,3S,4R,5R)-4-benzoyloxy-5-(benzoyloxymethyl)-3-(2-chloroacetyl)oxyoxolan-2-yl]oxy-5-[[(2R,3R,4S,5S)-3,4-dibenzoyloxy-5-(2-chloroethoxy)oxolan-2-yl]methoxy]oxolan-2-yl]methoxy]-4-(2-chloroacetyl)oxyoxolan-2-yl]methyl benzoate