[(2R,3R,4S,5R,6S)-3,4,5-triacetyloxy-6-[[(2R,3S)-2-(4-nitrophenyl)-4-oxo-2,3-dihydropyran-3-yl]oxy]oxan-2-yl]methyl acetate 在
sodium tetrahydroborate 、 cerium(III) chloride 作用下,
以
四氢呋喃 、
甲醇 为溶剂,
以75%的产率得到[(2R,3R,4S,5R,6S)-3,4,5-triacetyloxy-6-[[(2R,3R,4R)-4-hydroxy-2-(4-nitrophenyl)-3,4-dihydro-2H-pyran-3-yl]oxy]oxan-2-yl]methyl acetate