Ethanol → 3-(5-Cyclopropyl-1H-pyrazol-3-yl)-N-[(1S)-1-(5-fluoropyrimidin-2-yl)ethyl]-3H-imidazo[4,5-b]pyridin-5-amine

HRID 450397Notes

Reaction equation

HRID 450397 reaction equation
[CH:1]1([C:4]2[NH:8][N:7]=[C:6]([NH:9][C:10]3[C:15]([N+:16]([O-])=O)=[CH:14][CH:13]=[C:12]([NH:19][C@H:20]([C:22]4[N:27]=[CH:26][C:25]([F:28])=[CH:24][N:23]=4)[CH3:21])[N:11]=3)[CH:5]=2)[CH2:3][CH2:2]1.[CH2:29](O)C.C(OCC)(=O)C>[Cl-].[Na+].O.[Pd]>[CH:1]1([C:4]2[NH:8][N:7]=[C:6]([N:9]3[C:10]4=[N:11][C:12]([NH:19][C@H:20]([C:22]5[N:27]=[CH:26][C:25]([F:28])=[CH:24][N:23]=5)[CH3:21])=[CH:13][CH:14]=[C:15]4[N:16]=[CH:29]3)[CH:5]=2)[CH2:3][CH2:2]1

Participants

6

Reactant 3

HCID 702EthanolHCID 8857Ethyl AcetateHCID 86649277HCID 86649277, compound2×

Product 1

HCID 251159643-(5-Cyclopropyl-1H-pyrazol-3-yl)-N-[(1S)-1-(5-fluoropyrimidin-2-yl)ethyl]-3H-imidazo[4,5-b]pyridin-5-amine

Reagents, catalysts & solvents 2

HCID 23938PalladiumCatalystHCID 57417360Sodium chloride; waterSolvent

Procedure

N2-(5-cyclopropyl-1H-pyrazol-3-yl)-N6-[(1S)-1-(5-fluoropyrimidin-2-yl)ethyl]-3-nitropyridine-2,6-diamine (Intermediate 16, 0.45 g) was dissolved into ethanol (20 mL) with Pd—C (60 mg) and a hydrogen inlet. The mixture was stirred at room temperature until no starting material was detected with TLC or LCMS. Formylamidine acetate (0.5 g) was added to the filtrate after the filtration of resulting mixture. The mixture was stirred at 95° C. for 4 hours. Ethyl acetate (40 mL) was added into the resulting mixture, and brine (10 mL×3) was used to wash the organic layer. The organic layer was dried and concentrated. The resulting residue was separated by silica gel column (Ethyl acetate/MeOH) to afford 0.08 g of the title compound. MS (electrospray): 365 (M+1) for C18H17FN8. 1H NMR (300 MHz, CD3OD) δ ppm 8.70 (s, 2H) 8.30 (s, 1H) 7.70 (d, 1H) 6.70 (d, 1H) 6.50 (s, 1H) 5.30 (dd, 1H) 2.00 (m, 1H) 1.60 (d, 3H) 1.10 (m, 2H) 0.90 (m, 2H).

Workup

  1. filtrationafter the filtration
  2. customof resulting mixture
  3. stirringThe mixture was stirred at 95° C. for 4 hours
  4. washto wash the organic layer
  5. customThe organic layer was dried
  6. concentrationconcentrated
  7. customThe resulting residue was separated by silica gel column (Ethyl acetate/MeOH)

Sources & evidence

ORD record
ord-3ed16f9fa75643e4a07989c7a2703bb0
Source dataset
uspto-grants-2013_07
Patent number
US08486966B2

Reaction notes

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