Dichloromethane → HCID 86652141, compound

HRID 2203952Notes

Reaction equation

HRID 2203952 reaction equation
[Br:1][C:2]1[C:3]([N:17]2[CH2:22][CH2:21][CH2:20][C@@H:19]([NH:23]C(=O)OC(C)(C)C)[CH2:18]2)=[C:4]2[C:10]([NH:11][C:12]([O:14][CH2:15][CH3:16])=[O:13])=[CH:9][NH:8][C:5]2=[N:6][CH:7]=1.C(O)(C(F)(F)F)=O.C(Cl)[Cl:39]>>[ClH:39].[NH2:23][C@@H:19]1[CH2:20][CH2:21][CH2:22][N:17]([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:13])[O:14][CH2:15][CH3:16])[C:4]=23)[CH2:18]1

Participants

4

Reactant 3

HCID 6344DichloromethaneHCID 6422Trifluoroacetic acidHCID 67045529HCID 67045529, compound

Product 1

HCID 86652141HCID 86652141, compoundYield 79%

Procedure

(R)-tert-Butyl 1-(5-bromo-3-(ethoxycarbonylamino)-1H-pyrrolo[2,3-b]pyridin-4-yl)piperidin-3-ylcarbamate (0.120 g, 0.249 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 next 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)-ethyl 4-(3-aminopiperidin-1-yl)-5-bromo-1H-pyrrolo[2,3-b]pyridin-3-ylcarbamate hydrochloride (0.090 g, 79% yield) as a solid. 1H NMR (400 MHz, D2O) δ 8.23 (s, 1H), 7.28 (s, 1H), 4.11-4.06 (q, 2H), 3.78-3.75 (m, 1H), 3.53-3.49 (m, 1H), 3.40-3.43 (m, 1H), 3.27-3.18 (m, 2H), 2.09-2.06 (m, 1H), 1.81-1.69 (m, 2H), 1.60-1.54 (m, 1H), 1.19-1.16 (t, 3H). LCMS (APCI+) m/z 382, 384 (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 next 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-152fca1b7f36434488d8bd6fe92d761c
Source dataset
uspto-grants-2016_06
Patent number
US09365568B2

Reaction notes

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