[N+:1]([C:4]1[CH:9]=[CH:8][C:7]([C:10]2[N:11]=[CH:12][NH:13][CH:14]=2)=[CH:6][CH:5]=1)([O-:3])=[O:2].[K].[CH3:16]C(C)([O-])C.CI>CS(C)=O>[CH3:16][N:13]1[CH:14]=[C:10]([C:7]2[CH:6]=[CH:5][C:4]([N+:1]([O-:3])=[O:2])=[CH:9][CH:8]=2)[N:11]=[CH:12]1Prepared by reacting 4-(4-nitro-phenyl)-imidazole in DMSO with potassium-tert.butoxide at 0° C. and then with methyliodide at 20-25° C.
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