[(2R,3R,4R)-2-methyl-4-(naphthalen-2-ylmethoxy)-3,4-dihydro-2H-pyran-3-yl] 2-(4-nitrophenyl)ethanesulfonate 在
水 、 lithium bromide 作用下,
以
乙腈 为溶剂,
反应 3.0h,
生成 [(2R,3R,4R,6R)-6-hydroxy-2-methyl-4-(naphthalen-2-ylmethoxy)oxan-3-yl] 2-(4-nitrophenyl)ethanesulfonate 、
(2R,3R,4R,6S)-6-hydroxy-2-methyl-4-(naphthalen-2-ylmethoxy)tetrahydro-2H-pyran-3-yl 2-(4-nitrophenyl)ethane-1-sulfonate