Hydrochloric Acid → (S)-1-(3-chloro-6-(6-(5-ethylpyridin-3-yl)-1H-pyrazolo[4,3-c]pyridin-1-yl)pyridin-2-yl)piperidin-3-amine

HRID 57831Notes

Reaction equation

HRID 57831 reaction equation
[Cl:1][C:2]1[C:3]([N:25]2[CH2:30][CH2:29][CH2:28][C@H:27]([NH:31]C(=O)OC(C)(C)C)[CH2:26]2)=[N:4][C:5]([N:8]2[C:16]3[CH:15]=[C:14]([C:17]4[CH:18]=[N:19][CH:20]=[C:21]([CH2:23][CH3:24])[CH:22]=4)[N:13]=[CH:12][C:11]=3[CH:10]=[N:9]2)=[CH:6][CH:7]=1.Cl>CO.O1CCOCC1>[Cl:1][C:2]1[C:3]([N:25]2[CH2:30][CH2:29][CH2:28][C@H:27]([NH2:31])[CH2:26]2)=[N:4][C:5]([N:8]2[C:16]3[CH:15]=[C:14]([C:17]4[CH:18]=[N:19][CH:20]=[C:21]([CH2:23][CH3:24])[CH:22]=4)[N:13]=[CH:12][C:11]=3[CH:10]=[N:9]2)=[CH:6][CH:7]=1

Participants

5

Reactant 2

HCID 313Hydrochloric AcidHCID 86707036tert-butyl N-[(3S)-1-[3-chloro-6-[6-(5-ethyl-3-pyridyl)pyrazolo[4,3-c]pyridin-1-yl]-2-pyridyl]-3-piperidyl]carbamate

Product 1

HCID 86707037(S)-1-(3-chloro-6-(6-(5-ethylpyridin-3-yl)-1H-pyrazolo[4,3-c]pyridin-1-yl)pyridin-2-yl)piperidin-3-amineYield 36.2%

Reagents, catalysts & solvents 2

HCID 887MethanolSolventHCID 312751,4-DioxaneSolvent

Procedure

To a solution of tert-butyl N-[(3S)-1-[3-chloro-6-[6-(5-ethyl-3-pyridyl)pyrazolo[4,3-c]pyridin-1-yl]-2-pyridyl]-3-piperidyl]carbamate (0.0446 mmol; 23.8 mg) in Methanol (10 mL) was added hydrochloric acid, 4.0 M in 1,4-Dioxane (5 mL). The resulting mixture was stirred at room temperature overnight. The mixture was concentrated and the residue was purified by reverse phase HPLC to afford 117 (7.0 mg, 33%). 1H NMR (400 MHz, DMSO) δ 9.36-9.31 (s, 1H), 9.18-9.11 (m, 2H), 8.74-8.65 (s, 1H), 8.58-8.52 (d, J=1.9 Hz, 1H), 8.34-8.30 (s, 1H), 8.02-7.97 (d, J=8.4 Hz, 1H), 7.60-7.55 (d, J=8.4 Hz, 1H), 3.95-3.81 (dd, J=27.5, 10.2 Hz, 2H), 3.06-2.97 (t, J=10.2 Hz, 1H), 2.93-2.84 (t, J=9.5 Hz, 1H), 2.81-2.72 (m, 3H), 1.98-1.90 (d, J=12.6 Hz, 1H), 1.89-1.80 (d, J=13.3 Hz, 1H), 1.79-1.68 (d, J=12.9 Hz, 1H), 1.68-1.48 (s, 2H), 1.31-1.26 (t, J=7.6 Hz, 3H), 1.26-1.20 (m, 1H); MS (ESI) m/z: 434.2 [M+H]+

Workup

  1. concentrationThe mixture was concentrated
  2. customthe residue was purified by reverse phase HPLC

Sources & evidence

ORD record
ord-0aeeb7424afc4353b1f43c875563f77c
Source dataset
uspto-grants-2016_09
Patent number
US09434725B2

Reaction notes

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