(2R,3S,4R,5R,6R)-2-(acetoxymethyl)-6-(cyclohexylthio)-5-((E)-4-phenylbut-1-enylsulfonamido)-tetrahydro-2H-pyran-3,4-diyl diacetate 在
sodium methylate 作用下,
以
甲醇 为溶剂,
以91%的产率得到(E)-N-((2R,3R,4R,5S,6R)-2-(cyclohexylthio)-4,5-dihydroxy-6-(hydroxymethyl)-tetrahydro-2H-pyran-3-yl)-4-phenylbut-1-ene-1-sulfonamide