Dichloromethane → N-(4-(3-amino-3-methylpiperidin-1-yl)-5-bromo-1H-pyrrolo[2,3-b]pyridin-3-yl)nicotinamide hydrochloride

HRID 2203892Notes

Reaction equation

HRID 2203892 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][C:22]1([NH:28]C(=O)OC(C)(C)C)[CH2:27][CH2:26][CH2:25][NH:24][CH2:23]1.CCN(C(C)C)C(C)C.C(O)(C(F)(F)F)=O.C(Cl)[Cl:53]>CCCCO>[ClH:53].[NH2:28][C:22]1([CH3:21])[CH2:27][CH2:26][CH2:25][N:24]([C:3]2[C:2]([Br:1])=[CH:7][N:6]=[C:5]3[NH:8][CH:9]=[C:10]([NH:11][C:12](=[O:19])[C:13]4[CH:18]=[CH:17][CH:16]=[N:15][CH:14]=4)[C:4]=23)[CH2:23]1

Participants

7

Reactant 5

HCID 6344DichloromethaneHCID 6422Trifluoroacetic acidHCID 81531DiisopropylethylamineHCID 19691473Tert-butyl (3-methylpiperidin-3-yl)carbamateHCID 60205277N-(5-bromo-4-fluoro-1H-pyrrolo[2,3-b]pyridin-3-yl)nicotinamide

Product 1

HCID 60205511N-(4-(3-amino-3-methylpiperidin-1-yl)-5-bromo-1H-pyrrolo[2,3-b]pyridin-3-yl)nicotinamide hydrochlorideYield 7.96%

Reagents, catalysts & solvents 1

HCID 2631-ButanolSolvent

Procedure

N-(5-Bromo-4-fluoro-1H-pyrrolo[2,3-b]pyridin-3-yl)nicotinamide (100 mg, 0.298 mmol), tert-butyl 3-methylpiperidin-3-ylcarbamate (192 mg, 0.895 mmol) and DIEA (0.052 mL, 0.298 mmol) in n-BuOH (3 mL) were stirred at 143° C. (bath) for 24 hours. The solvent was removed, and the residue was dissolved in ethyl acetate (20 mL), washed with water (10 mL), brine (10 mL), dried (sodium sulfate), and concentrated in vacuo. The residue obtained was purified by C-18 reverse phase flash chromatography (Biotage SP4 unit, C-18 25M+ column, 10-80% CH3CN/water gradient; 30 CV). The product isolated was dissolved in DCM (2 mL), and TFA (0.5 mL) was added. The mixture was stirred at room temperature for 1 hour. The solvent was then 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-(4-(3-amino-3-methylpiperidin-1-yl)-5-bromo-1H-pyrrolo[2,3-b]pyridin-3-yl)nicotinamide hydrochloride (12.8 mg, 7.96% yield) as a solid. 1H NMR (400 MHz, (CD3)2SO) δ 12.09 (s, 1H), 10.54 (s, 1H), 9.37 (s, 1H), 8.91 (d, 1H), 8.70 (m, 1H), 8.29 (s, 1H), 8.05 (s, 3H), 7.83 (m, 1H), 7.54 (s, 1H), 3.40 (m, 2H), 3.27 (m, 1H), 3.17 (m, 2H), 1.65 (m, 2H), 1.46 (m, 1H), 2.00 (s, 3H); LCMS (APCI+) m/z 429 (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 (sodium sulfate)
  5. concentrationconcentrated in vacuo
  6. customThe residue obtained
  7. customwas purified by C-18 reverse phase flash chromatography (Biotage SP4 unit
  8. customThe product isolated
  9. customThe solvent was then removed
  10. dissolutionThe residue was dissolved in DCM (1 mL)
  11. addition2N HCl in ether (3 mL) was added
  12. customThe solid formed
  13. filtrationwas collected by filtration

Sources & evidence

ORD record
ord-4c4ba1732c7a45e99bb57ae6e9b0ae1c
Source dataset
uspto-grants-2016_06
Patent number
US09365568B2

Reaction notes

Loading…