Trifluoroacetic acid → HCID 71257233, compound

HRID 875873Notes

Reaction equation

HRID 875873 reaction equation
[Cl:1][C:2]1[C:3]([N:16]2[CH2:21][CH2:20][CH2:19][C@@H:18]([N:22](C)[C:23](=O)OC(C)(C)C)[CH2:17]2)=[C:4]2[C:10]([NH:11][C:12](=[O:15])[CH2:13][CH3:14])=[CH:9][NH:8][C:5]2=[N:6][CH:7]=1.C(O)(C(F)(F)F)=O>C(Cl)Cl>[ClH:1].[Cl:1][C:2]1[C:3]([N:16]2[CH2:21][CH2:20][CH2:19][C@@H:18]([NH:22][CH3:23])[CH2:17]2)=[C:4]2[C:10]([NH:11][C:12](=[O:15])[CH2:13][CH3:14])=[CH:9][NH:8][C:5]2=[N:6][CH:7]=1

Participants

4

Reactant 2

HCID 6422Trifluoroacetic acidHCID 67081456HCID 67081456, compound

Product 1

HCID 71257233HCID 71257233, compoundYield 195.1%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

(R)-tert-Butyl 1-(5-chloro-3-propionamido-1H-pyrrolo[2,3-b]pyridin-4-yl)piperidin-3-yl(methyl)carbamate (0.180 g, 0.413 mmol) was placed in DCM (3 mL) at room temperature. TFA (1 mL) was then added, and the reaction was stirred at room temperature for 1 hour and concentrated to dryness. The resulting residue was then purified by reverse phase chromatography (Biotage SP4, C-18 12M+, 0-50% CH3CN/water). The resulting product was dissolved in minimal DCM (with MeOH to aid solubility) and added to a stirred solution of 1M HCl in ether. The resulting solid was filtered, washed with ether and dried to give (R)—N-(5-chloro-4-(3-(methylamino)piperidin-1-yl)-1H-pyrrolo[2,3-b]pyridin-3-yl)propionamide hydrochloride (0.150 g, 89% yield) as a solid. 1H NMR (400 MHz, D2O) δ 8.13 (s, 1H), 7.28 (s, 1H), 3.87-3.84 (m, 1H), 3.42-3.37 (m, 2H), 3.20-3.14 (m, 2H), 2.59 (s, 3H), 2.42-2.37 (q, 2H), 1.15-2.13 (m, 1H), 1.79-1.75 (m, 1H), 1.65-1.52 (m, 2H), 1.10-1.06 (t, 3H). LCMS (APCI+) m/z 336 (M+H)+.

Workup

  1. concentrationconcentrated to dryness
  2. customThe resulting residue was then purified by reverse phase chromatography (Biotage SP4
  3. dissolutionThe resulting product was dissolved in minimal DCM (with MeOH to aid solubility)
  4. additionadded to a stirred solution of 1M HCl in ether
  5. filtrationThe resulting solid was filtered
  6. washwashed with ether
  7. customdried

Sources & evidence

ORD record
ord-e63b5e0880aa402088ae0439efbd4ed0
Source dataset
uspto-grants-2015_03
Patent number
US08981085B2

Reaction notes

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