Trifluoroacetic acid → HCID 58195542, compound

HRID 1923729Notes

Reaction equation

HRID 1923729 reaction equation
[Br:1][C:2]1[C:3](F)=[C:4]2[C:10]([NH:11][C:12](=[O:19])[C:13]3[CH:18]=[CH:17][CH:16]=[N:15][CH:14]=3)=[CH:9][NH:8][C:5]2=[N:6][CH:7]=1.[CH3:21][N:22]([CH:30]1[CH2:34][CH2:33][NH:32][CH2:31]1)C(=O)OC(C)(C)C.CCN(C(C)C)C(C)C.C(O)(C(F)(F)F)=O>CCCCO.C(Cl)Cl>[Br:1][C:2]1[C:3]([N:32]2[CH2:33][CH2:34][CH:30]([NH:22][CH3:21])[CH2:31]2)=[C:4]2[C:10]([NH:11][C:12](=[O:19])[C:13]3[CH:18]=[CH:17][CH:16]=[N:15][CH:14]=3)=[CH:9][NH:8][C:5]2=[N:6][CH:7]=1

Participants

7

Reactant 4

HCID 6422Trifluoroacetic acidHCID 81531DiisopropylethylamineHCID 27614043-(N-tert-Butoxycarbonyl-N-methylamino)pyrrolidineHCID 60205277N-(5-bromo-4-fluoro-1H-pyrrolo[2,3-b]pyridin-3-yl)nicotinamide

Product 1

HCID 58195542HCID 58195542, compoundYield 74.6%

Reagents, catalysts & solvents 2

HCID 2631-ButanolSolventHCID 6344DichloromethaneSolvent

Procedure

N-(5-Bromo-4-fluoro-1H-pyrrolo[2,3-b]pyridin-3-yl)nicotinamide (100 mg, 0.30 mmol), tert-butyl methyl(pyrrolidin-3-yl)carbamate (240 mg, 1.19 mmol) and DIEA (0.0520 mL, 0.30 mmol) in n-BuOH (3 mL) were stirred at 143° C. (bath) for 24 hours. The solvent was removed. The residue was dissolved in ethyl acetate (20 mL), washed with water (10 mL), brine (10 mL), and dried over sodium sulfate. After removal of the solvent, the residue was purified by chromatography (ethyl acetate:MeOH, 10:1) to give a solid. This solid was dissolved in DCM (3 mL), and TFA (0.5 mL) was added. The mixture was stirred at room temperature for 1 hour. The solvent was removed. The residue was dissolved in DCM (1 mL) and 2N HCl in ether (3 mL) was added. The solid formed was collected by filtration to give N-(5-Bromo-4-(3-(methylamino)pyrrolidin-1-yl)-1H-pyrrolo[2,3-b]pyridin-3-yl)nicotinamide (93 mg, 59% yield) as a solid. 1H NMR (400 MHz, D2O) δ 9.14 (d, 1H), 8.83 (dd, 1H), 8.71 (dt, 1H), 8.23 (s, 1H), 7.98 (dd, 1H), 7.44 (s, 1H), 4.02-3.96 (m, 1H), 3.76-3.68 (m, 3H), 3.65-3.59 (m, 1H), 2.22-2.13 (m, 1H), 1.93-1.84 (m, 1H); LCMS (APCI+) m/z 415, 417 (M+H)+.

Workup

  1. customThe solvent was removed
  2. dissolutionThe residue was dissolved in ethyl acetate (20 mL)
  3. washwashed with water (10 mL), brine (10 mL)
  4. dry with materialdried over sodium sulfate
  5. customAfter removal of the solvent
  6. customthe residue was purified by chromatography (ethyl acetate:MeOH, 10:1)
  7. customto give a solid
  8. customThe solvent was removed
  9. dissolutionThe residue was dissolved in DCM (1 mL)
  10. addition2N HCl in ether (3 mL) was added
  11. customThe solid formed
  12. filtrationwas collected by filtration

Sources & evidence

ORD record
ord-b4a3ed393d9642658957093b4bd019f6
Source dataset
uspto-grants-2012_05
Patent number
US08178131B2

Reaction notes

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