Triethylamine → 5-((4-Bromo-2-chlorophenyl)amino)-4-fluoro-1-methyl-N-(2-(vinyloxy)ethoxy)-1H-benzo[d]imidazole-6-carboxamide

HRID 504188Notes

Reaction equation

HRID 504188 reaction equation
[Br:1][C:2]1[CH:7]=[CH:6][C:5]([NH:8][C:9]2[C:10]([C:20]([OH:22])=O)=[CH:11][C:12]3[N:16]([CH3:17])[CH:15]=[N:14][C:13]=3[C:18]=2[F:19])=[C:4]([Cl:23])[CH:3]=1.[CH:24]([O:26][CH2:27][CH2:28][O:29][NH2:30])=[CH2:25].C1C=CC2N(O)N=NC=2C=1.C(N(CC)CC)C.CCN=C=NCCCN(C)C>CN(C)C=O.C(OCC)(=O)C>[CH:24]([O:26][CH2:27][CH2:28][O:29][NH:30][C:20]([C:10]1[C:9]([NH:8][C:5]2[CH:6]=[CH:7][C:2]([Br:1])=[CH:3][C:4]=2[Cl:23])=[C:18]([F:19])[C:13]2[N:14]=[CH:15][N:16]([CH3:17])[C:12]=2[CH:11]=1)=[O:22])=[CH2:25]

Participants

8

Reactant 5

HCID 8471TriethylamineHCID 159081-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 757711-HydroxybenzotriazoleHCID 16092137AZ-133266637HCID 21867017O-(2-(Vinyloxy)ethyl)hydroxylamine

Product 1

HCID 707006695-((4-Bromo-2-chlorophenyl)amino)-4-fluoro-1-methyl-N-(2-(vinyloxy)ethoxy)-1H-benzo[d]imidazole-6-carboxamideYield 90.1%

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 8857Ethyl AcetateSolvent

Procedure

6-(4-Bromo-2-chloro-phenylamino)-7-fluoro-3-methyl-3H-benzoimidazole-5-carboxylic acid 10c (2.00 g, 5.0 mmol), O-(2-vinyloxy-ethyl)-hydroxylamine (0.776 g, 7.5 mmol), HOBt (0.88 g, 6.5 mmol), triethylamine (1.61 mL, 2.3 mmol) and EDCI (1.3 g, 6.5 mmol) are dissolved in dimethylformamide (52 mL) and stirred at room temperature for 48 hours. The reaction mixture is diluted with ethyl acetate, washed with water (3×), saturated potassium carbonate (2×), saturated ammonium chloride (2×), brine, dried (Na2SO4) and concentrated under reduced pressure to an off-white solid. Trituration of the solid with diethyl ether provides 2.18 g (90%) desired product as an off-white solid. MS ESI (+) m/z 483, 485 (M+Br pattern) detected.

Workup

  1. washwashed with water (3×), saturated potassium carbonate (2×), saturated ammonium chloride (2×), brine
  2. dry with materialdried (Na2SO4)
  3. concentrationconcentrated under reduced pressure to an off-white solid

Sources & evidence

ORD record
ord-9472c43edeea4017b4d2f04aa3137983
Source dataset
uspto-grants-2010_08
Patent number
US07777050B2

Reaction notes

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