(2S,3R,4R,5S,6S)-2-methyl-6-[[(2R,3S,4R)-3-[(2S,3R,4S,5S,6R)-3-[(2S,3S,4R,5R,6S)-6-methyl-3,4,5-tris(phenylmethoxy)oxan-2-yl]oxy-4,5-bis(phenylmethoxy)-6-(phenylmethoxymethyl)oxan-2-yl]oxy-2-(phenylmethoxymethyl)-3,4-dihydro-2H-pyran-4-yl]oxy]-3,4,5-tris(phenylmethoxy)oxane 、
苯磺酰胺 在
iodonium(di-γ-collidine) perchlorate 作用下,
以
二氯甲烷 为溶剂,
反应 0.67h,
以87%的产率得到N-[(2S,3S,4S,5R,6R)-3-iodo-4-[(2S,3S,4R,5R,6S)-6-methyl-3,4,5-tris(phenylmethoxy)oxan-2-yl]oxy-5-[(2S,3R,4S,5S,6R)-3-[(2S,3S,4R,5R,6S)-6-methyl-3,4,5-tris(phenylmethoxy)oxan-2-yl]oxy-4,5-bis(phenylmethoxy)-6-(phenylmethoxymethyl)oxan-2-yl]oxy-6-(phenylmethoxymethyl)oxan-2-yl]benzenesulfonamide