S(S([O-])=O)([O-])=O.[Na+].[Na+].[CH3:9][O:10][C:11]1[CH:16]=[CH:15][C:14]([N+:17]([O-])=O)=[CH:13][C:12]=1[CH2:20][S:21][CH3:22].C(=O)([O-])O.[Na+]>CO.O>[CH3:9][O:10][C:11]1[CH:16]=[CH:15][C:14]([NH2:17])=[CH:13][C:12]=1[CH2:20][S:21][CH3:22]Sodium dithionite (3.264 g) was added to a solution of 1-methoxy-2-methylsulfanylmethyl-4-nitro-benzene (0.8 g), and sodium hydrogen carbonate (1.57 g) in methanol:water (1:1, 200 ml) and stirred at room temperature for 16 h. Solvent was removed at reduced pressure, the residue partitioned between water and ethyl acetate, the organic phase separated, washed with brine dried (Na2SO4) and solvent removed at reduced pressure to give the title compound (0.23 g) as a brown oil. m/z (API+): 184 (MH+).
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