Trifluoroacetic acid → HCID 73295613, compound

HRID 522983Notes

Reaction equation

HRID 522983 reaction equation
[C:1]([NH:5][C:6]([C:8]1[C:16]2[C:11](=[N:12][CH:13]=[C:14]([NH:17][C:18]3[CH:23]=[CH:22][C:21]([CH3:24])=[CH:20][C:19]=3[CH3:25])[N:15]=2)[N:10](COCC[Si](C)(C)C)[CH:9]=1)=[O:7])([CH3:4])([CH3:3])[CH3:2].FC(F)(F)C(O)=O>ClCCl.CO.[OH-].[NH4+]>[C:1]([NH:5][C:6]([C:8]1[C:16]2[C:11](=[N:12][CH:13]=[C:14]([NH:17][C:18]3[CH:23]=[CH:22][C:21]([CH3:24])=[CH:20][C:19]=3[CH3:25])[N:15]=2)[NH:10][CH:9]=1)=[O:7])([CH3:4])([CH3:3])[CH3:2]

Participants

6

Reactant 2

HCID 6422Trifluoroacetic acidHCID 131735559HCID 131735559, compound

Product 1

HCID 73295613HCID 73295613, compoundYield 12%

Reagents, catalysts & solvents 3

HCID 887MethanolSolventHCID 6344DichloromethaneSolvent2×HCID 14923Ammonium HydroxideSolvent

Procedure

To a solution of N-tert-butyl-2-(2,4-dimethylphenylamino)-5-((2-(trimethylsilyl)ethoxy)methyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxamide (82 mg, 175 mol) in dichloromethane (2.7 mL) was added trifluoroacetic acid (400 mg, 270 μL, 3.51 mmol) and the mixture stirred at room temperature for 16 h. The reaction mixture was concentrated in vacuo and the residue obtained diluted with dichloromethane (3 mL), methanol (1.5 mL) and ammonium hydroxide (0.4 mL) and stirred at room temperature for 1 h. The mixture was concentrated and triturated with water. The solid was collected by filtration and washed with water and ether to give N-tert-butyl-2-(2,4-dimethylphenylamino)-5H-pyrrolo[2,3-b]pyrazine-7-carboxamide (7 mg, 20.7 mol, 12%) as a yellow solid. 1H NMR (400 MHz, CDCl3-d) δ ppm: 9.19 (s, 1H), 8.12 (d, J=3.0, 1 H), 7.95 (s, 1H), 7.86 (s, 1H), 7.50 (d, J=7.8, 1 H), 7.15 (s, 1H), 7.08 (d, J=8.2, 1 H), 6.33 (s, 1H), 2.38 (s, 3H), 2.34 (s, 1H), 1.49 (s, 9H); MS (EI/CI) m/z: 338.2 [M+H].

Workup

  1. concentrationThe reaction mixture was concentrated in vacuo
  2. customthe residue obtained
  3. stirringstirred at room temperature for 1 h
  4. concentrationThe mixture was concentrated
  5. customtriturated with water
  6. filtrationThe solid was collected by filtration
  7. washwashed with water and ether

Sources & evidence

ORD record
ord-e858ed8077c148d7b2b329975cb14b50
Source dataset
uspto-grants-2016_05
Patent number
US09334278B2

Reaction notes

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