[CH3:1][O:2][C:3]([C:5]1[CH:13]=[CH:12][C:8]([C:9](O)=[O:10])=[CH:7][CH:6]=1)=[O:4].[CH3:14][N:15](C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)[CH3:16].F[P-](F)(F)(F)(F)F.CNC.C(N(CC)CC)C>C1COCC1>[CH3:14][N:15]([CH3:16])[C:9]([C:8]1[CH:12]=[CH:13][C:5]([C:3]([O:2][CH3:1])=[O:4])=[CH:6][CH:7]=1)=[O:10]To a soln. of 4-(methoxycarbonyl)benzoic acid (100 mg, 0.555 mmol) in THF (5 ml) was added HATU (211 mg, 0.555 mmol), dimethylamine (0.278 ml, 0.555 mmol) and triethylamine (0.077 ml, 0.555 mmol) at r.t. The mixture was stirred at r.t for 4 hrs. Evaporated to remove the solvent. The residue was dissolved in EtOAc (10 ml), washed w/water (3×), brine. Dried (Na2SO4), and evaporated to afford methyl 4-(dimethylcarbamoyl)benzoate (100 mg, 0.458 mmol, 83% yield) as solid. 1H-NMR (CD3OD, 500 MHz): δ 8.10 (1H, d, J=6.4 Hz), 7.55 (1H, d, J=6.4 Hz), 3.94 (3H, s), 3.13 (3H, s), 2.99 (3H, s). m/e (M+H): 208.1
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