C
46H
41BrO
6S 、
[(2R,3R,4R)-4-[(2R,3S)-2-[3,4-bis(phenylmethoxy)phenyl]-3-hydroxy-5,7-bis(phenylmethoxy)-3,4-dihydro-2H-chromen-8-yl]-5,7-bis(phenylmethoxy)-2-[3,4,5-tris(phenylmethoxy)phenyl]-3,4-dihydro-2H-chromen-3-yl] acetate 在
碘 、
silver(l) oxide 作用下,
以
二氯甲烷 为溶剂,
反应 3.08h,
以76%的产率得到[(2R,3R,4S)-4-[(2R,3R,4S)-3-acetyloxy-4-[(2R,3S)-2-[3,4-bis(phenylmethoxy)phenyl]-3-hydroxy-5,7-bis(phenylmethoxy)-3,4-dihydro-2H-chromen-8-yl]-5,7-bis(phenylmethoxy)-2-[3,4,5-tris(phenylmethoxy)phenyl]-3,4-dihydro-2H-chromen-8-yl]-8-bromo-5,7-bis(phenylmethoxy)-2-(4-phenylmethoxyphenyl)-3,4-dihydro-2H-chromen-3-yl] acetate