2,2,2-Trifluoroethyl trifluoromethanesulfonate → HCID 117667218, compound

HRID 1526240Notes

Reaction equation

HRID 1526240 reaction equation
[Cl:1][C:2]1[N:3]=[C:4]([NH:13][C:14]2[CH:15]=[N:16][N:17]([CH:19]3[CH2:24][CH2:23][NH:22][CH2:21][CH2:20]3)[CH:18]=2)[C:5]([C:10]([NH2:12])=[O:11])=[N:6][C:7]=1[CH2:8][CH3:9].C(N(C(C)C)CC)(C)C.[F:34][C:35]([F:46])([F:45])[CH2:36]OS(C(F)(F)F)(=O)=O>CN(C)C=O>[Cl:1][C:2]1[N:3]=[C:4]([NH:13][C:14]2[CH:15]=[N:16][N:17]([CH:19]3[CH2:24][CH2:23][N:22]([CH2:36][C:35]([F:46])([F:45])[F:34])[CH2:21][CH2:20]3)[CH:18]=2)[C:5]([C:10]([NH2:12])=[O:11])=[N:6][C:7]=1[CH2:8][CH3:9]

Participants

5

Reactant 3

HCID 803662,2,2-Trifluoroethyl trifluoromethanesulfonateHCID 81531DiisopropylethylamineHCID 117667074HCID 117667074, compound

Product 1

HCID 117667218HCID 117667218, compound

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

To a mixture of 5-chloro-6-ethyl-3-{[1-(piperidin-4-yl)-1H-pyrazol-4-yl]amino}pyrazine-2-carboxamide (350 mg) and diisopropylethylamine (685 μL) in N,N-dimethylformamide (3.5 mL) was added 2,2,2-trifluoroethyltrifluoromethanesulfonate (433 μL), followed by reacting at room temperature for 2 hours. The mixture was subjected to liquid separation by the addition of ethyl acetate and a saturated aqueous sodium hydrogen carbonate solution. The organic phase was washed with saturated brine and dried over anhydrous sodium sulfate, and then the solvent was evaporated under reduced pressure. The obtained residue was purified by silica gel column chromatography (chloroform:methanol=99:1-90:10) to obtain 5-chloro-6-ethyl-3-({1-[1-(2,2,2-trifluoroethyl)piperidin-4-yl]-1H-pyrazol-4-yl}amino)pyrazine-2-carboxamide (424 mg) as a yellow solid.

Workup

  1. customThe mixture was subjected to liquid separation by the addition of ethyl acetate
  2. washThe organic phase was washed with saturated brine
  3. dry with materialdried over anhydrous sodium sulfate
  4. customthe solvent was evaporated under reduced pressure
  5. customThe obtained residue was purified by silica gel column chromatography (chloroform:methanol=99:1-90:10)

Sources & evidence

ORD record
ord-32e8864665c04128891408ef92f0db8f
Source dataset
uspto-grants-2015_07
Patent number
US09085540B2

Reaction notes

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