Dimethylamine → 5-{[3-bromo-4-[(2,4-difluorobenzyl)oxy]-6-methyl-2-oxopyridin-1(2H)-yl]methyl}-N,N-dimethylpyrazine-2-carboxamide

HRID 1832033Notes

Reaction equation

HRID 1832033 reaction equation
[Br:1][C:2]1[C:3](=[O:29])[N:4]([CH2:19][C:20]2[N:21]=[CH:22][C:23]([C:26](O)=[O:27])=[N:24][CH:25]=2)[C:5]([CH3:18])=[CH:6][C:7]=1[O:8][CH2:9][C:10]1[CH:15]=[CH:14][C:13]([F:16])=[CH:12][C:11]=1[F:17].[CH3:30][N:31]1CCOC[CH2:32]1.CNC>CN(C=O)C>[Br:1][C:2]1[C:3](=[O:29])[N:4]([CH2:19][C:20]2[N:21]=[CH:22][C:23]([C:26]([N:31]([CH3:32])[CH3:30])=[O:27])=[N:24][CH:25]=2)[C:5]([CH3:18])=[CH:6][C:7]=1[O:8][CH2:9][C:10]1[CH:15]=[CH:14][C:13]([F:16])=[CH:12][C:11]=1[F:17]

Participants

5

Reactant 3

HCID 674DimethylamineHCID 79724-MethylmorpholineHCID 22050084HCID 22050084, compound

Product 1

HCID 220509845-{[3-bromo-4-[(2,4-difluorobenzyl)oxy]-6-methyl-2-oxopyridin-1(2H)-yl]methyl}-N,N-dimethylpyrazine-2-carboxamideYield 76.7%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

To a cold solution of 5-{[3-bromo-4-[(2,4-difluorobenzyl)oxy]-6-methyl-2-oxopyridin-1(2H)-yl]methyl}pyrazine-2-carboxylic acid (0.175 g, 0.37 mmol) in DMF (5 mL, −10° C.) was added IBCF (0.046 mL, 0.35 mmol) followed by NMM (0.041 mL 0.37 mmol). The reaction was activated for 20 minutes at −15° C. after which dimethylamine (0.375 mL, 0.74 mmol) was added. The reaction stirred at −10° C. to room temperature for 45 minutes. The solvent was removed in vacuo and the residue was purified by reverse phase HPLC 10-90% CH3CN/water (30 minute gradient) at a flow rate of 70 mL/min. The appropriate fractions were combined and freeze dried to afford the desired product (0.140 g, 75%) as a white solid. 1H NMR (CD3OD, 400 MHz) δ 8.68 (s, 1H), 8.67 (s, 1H), 7.52 (m, 1H), 7.02 (m, 2H), 6.54 (s, 1H), 5.50 (s, 2H), 5.30 (s, 2H), 3.11 (s, 3H), 3.07 (s, 3H), 2.55 (s, 3H); ES-HRMS m/z 493.0680/495.0657 (M+H calculated for C21H20N4O3BrF2 requires 493.0680/495.0657).

Workup

  1. customThe solvent was removed in vacuo
  2. customthe residue was purified by reverse phase HPLC 10-90% CH3CN/water (30 minute gradient) at a flow rate of 70 mL/min
  3. customfreeze dried

Sources & evidence

ORD record
ord-01c07488920e4e94aa36d56793d9294a
Source dataset
uspto-grants-2006_06
Patent number
US07067540B2

Reaction notes

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