Triethylamine → HCID 86707944, compound

HRID 2400292Notes

Reaction equation

HRID 2400292 reaction equation
[CH3:1][CH:2]([C:5]1[N:6]([CH2:17][C:18]2[N:23]=[C:22]([C:24]([NH2:26])=O)[CH:21]=[CH:20][CH:19]=2)[C:7]2[C:12]([CH:13]=1)=[CH:11][C:10]([O:14][CH3:15])=[C:9]([Cl:16])[CH:8]=2)[CH2:3][CH3:4].C(N(CC)CC)C.FC(F)(F)C(OC(=O)C(F)(F)F)=O.C(=O)([O-])O.[Na+]>ClCCl>[CH3:1][CH:2]([C:5]1[N:6]([CH2:17][C:18]2[N:23]=[C:22]([C:24]#[N:26])[CH:21]=[CH:20][CH:19]=2)[C:7]2[C:12]([CH:13]=1)=[CH:11][C:10]([O:14][CH3:15])=[C:9]([Cl:16])[CH:8]=2)[CH2:3][CH3:4]

Participants

6

Reactant 4

HCID 8471TriethylamineHCID 9845Trifluoroacetic anhydrideHCID 516892Sodium BicarbonateHCID 86707943HCID 86707943, compound

Product 1

HCID 86707944HCID 86707944, compoundYield 87.3%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a solution of 6-[2-(butan-2-yl)-6-chloro-5-methoxyindol-1-ylmethyl]pyridine-2-carboxamide (118 mg) in dichloromethane (1.6 mL) were successively added triethylamine (0.225 mL) and trifluoroacetic anhydride (0.112 mL) under ice-cooling. This mixture was stirred at room temperature for 22 hours. To the reaction mixture was added saturated aqueous sodium hydrogen carbonate solution, followed by extraction with ethyl acetate. The organic layer was washed with saturated brine, dried over anhydrous sodium sulfate, and then concentrated under reduced pressure. The residue was purified by silica gel column chromatography (eluting solvent: ethyl acetate-hexane) to obtain the title compound (98 mg). 1H-NMR (CDCl3) δ ppm: 0.86 (3H, t, J=7.4 Hz), 1.24 (3H, d, J=6.8 Hz), 1.45-1.80 (2H, m), 2.60-2.75 (1H, m), 3.93 (3H, s), 5.40 (2H, s), 6.31 (1H, s), 6.50-6.65 (1H, m), 7.11 (1H, s), 7.14 (1H, s), 7.50-7.70 (2H, m).

Workup

  1. temperaturecooling
  2. extractionfollowed by extraction with ethyl acetate
  3. washThe organic layer was washed with saturated brine
  4. dry with materialdried over anhydrous sodium sulfate
  5. concentrationconcentrated under reduced pressure
  6. customThe residue was purified by silica gel column chromatography (eluting solvent: ethyl acetate-hexane)

Sources & evidence

ORD record
ord-6063af194ca54806aab880105097633d
Source dataset
uspto-grants-2014_08
Patent number
US08796247B2

Reaction notes

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