[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2([O:26][C@H:25]([CH2:27][O:28][C:29](=[O:31])[CH3:30])[C@@H:20]([O:21][C:22](=[O:24])[CH3:23])[C@H:15]([O:16][C:17](=[O:19])[CH3:18])[C@H:10]2[O:11][C:12](=[O:14])[CH3:13])[OH:9])=[CH:4][C:3]=1[CH2:32]Br.C[N+]1([O-])CC[O:38]CC1>C(#N)C>[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2([O:26][C@H:25]([CH2:27][O:28][C:29](=[O:31])[CH3:30])[C@@H:20]([O:21][C:22](=[O:24])[CH3:23])[C@H:15]([O:16][C:17](=[O:19])[CH3:18])[C@H:10]2[O:11][C:12](=[O:14])[CH3:13])[OH:9])=[CH:4][C:3]=1[CH:32]=[O:38]To a solution of 1-chloro-4-(2,3,4,6-tetra-O-acetyl-D-glucopyranos-1-yl)-2-bromomethyl-benzene (2.0 g) in acetonitrile (20 mL) is added N-methylmorpholine-N-oxide (0.47 g). The resulting solution is stirred at ambient temperature for 2 h before more N-methylmorpholine-N-oxide (0.20 g) is added. After stirring at ambient temperature overnight, the solvent is removed under reduced pressure and the residue is filtered over silica gel eluting with dichloromethane.
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