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Potassium Carbonate → 2-(1-((2,2-difluorocyclopropyl)methyl)-5-oxo-1H-1,2,4-triazol-4(5H)-yl)-4-methyl-N-(pyridin-3-ylmethyl)thiazole-5-carboxamide

HRID 1882478
Notes
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Reaction equation

HRID 1882478 reaction equation
[CH3:1][C:2]1[N:3]=[C:4]([N:17]2[C:21](=[O:22])[NH:20][N:19]=[CH:18]2)[S:5][C:6]=1[C:7]([NH:9][CH2:10][C:11]1[CH:12]=[N:13][CH:14]=[CH:15][CH:16]=1)=[O:8].C(=O)([O-])[O-].[K+].[K+].CS(O[CH2:34][CH:35]1[CH2:37][C:36]1([F:39])[F:38])(=O)=O>CN(C)C=O.C(OCC)(=O)C>[F:38][C:36]1([F:39])[CH2:37][CH:35]1[CH2:34][N:20]1[C:21](=[O:22])[N:17]([C:4]2[S:5][C:6]([C:7]([NH:9][CH2:10][C:11]3[CH:12]=[N:13][CH:14]=[CH:15][CH:16]=3)=[O:8])=[C:2]([CH3:1])[N:3]=2)[CH:18]=[N:19]1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

6

Reactant 3

HCID 11430Potassium CarbonateHCID 58198163Cyclopropanemethanol, 2,2-difluoro-, 1-methanesulfonateHCID 594812404-methyl-2-(5-oxo-1H-1,2,4-triazol-4(5H)-yl)-N-(pyridin-3-ylmethyl)thiazole-5-carboxamide

Product 1

HCID 579199232-(1-((2,2-difluorocyclopropyl)methyl)-5-oxo-1H-1,2,4-triazol-4(5H)-yl)-4-methyl-N-(pyridin-3-ylmethyl)thiazole-5-carboxamideYield 41%

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 8857Ethyl AcetateSolvent

Procedure

To a suspension of 4-methyl-2-(5-oxo-1H-1,2,4-triazol-4(5H)-yl)-N-(pyridin-3-ylmethyl)thiazole-5-carboxamide (0.15 g, 0.47 mmol) and potassium carbonate (0.10 g, 1.47 mmol) in N,N-dimethylformamide (2 mL) was added (2,2-difluorocyclopropyl)-methyl methanesulfonate (0.13 g, 0.70 mmol). The reaction mixture was kept stirring at ambient temperature for 20 hours, diluted with ethyl acetate (100 mL) and washed with water and brine. The organic solution was dried over anhydrous sodium sulfate and filtered. The filtrate was concentrated in vacuo and the residue was purified by column chromatography to afford the title compound in 41% yield (0.08 g): mp 160-161° C.; 1H NMR (300 MHz, CDCl3) δ 8.53-8.41 (m, 2H), 8.24 (s, 1H), 7.69-7.62 (m, 1H), 7.27-7.16 (m, 2H), 4.54 (d, J=5.8 Hz, 2H), 4.00-3.81 (m, 2H), 2.58 (s, 3H), 2.08-1.91 (m, 1H), 1.56-1.41 (m, 1H), 1.40-1.10 (m, 1H); 13C NMR (75 MHz, CDCl3) δ 161.8, 153.3, 150.9, 149.8, 149.1, 148.7, 135.8, 133.9, 131.1, 123.7, 121.8, 112.7, 43.2, 41.5, 20.8, 17.2, 15.4; MS (ES+) m/z 407.1 (M+1).

Workup

  1. washwashed with water and brine
  2. dry with materialThe organic solution was dried over anhydrous sodium sulfate
  3. filtrationfiltered
  4. concentrationThe filtrate was concentrated in vacuo
  5. customthe residue was purified by column chromatography

Sources & evidence

ORD record
ord-5960edea10a7428bad9003ebf5ede654
Source dataset
uspto-grants-2012_11
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08318949B2

Reaction notes

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