Triethylamine → 4-(3-(3-methylpyridin-2-yloxy)benzylidene)-N-(pyridin-3-yl)piperidine-1-carboxamide

HRID 1666400

Reaction equation

HRID 1666400 reaction equation
Cl.[CH3:2][C:3]1[C:4]([O:9][C:10]2[CH:15]=[CH:14][CH:13]=[C:12]([CH:16]=[C:17]3[CH2:22][CH2:21][NH:20][CH2:19][CH2:18]3)[CH:11]=2)=[N:5][CH:6]=[CH:7][CH:8]=1.[N:23]1[CH:28]=[CH:27][CH:26]=[C:25]([NH:29][C:30](=O)[O:31]C2C=CC=CC=2)[CH:24]=1.C(N(CC)CC)C>C(#N)C>[CH3:2][C:3]1[C:4]([O:9][C:10]2[CH:11]=[C:12]([CH:13]=[CH:14][CH:15]=2)[CH:16]=[C:17]2[CH2:22][CH2:21][N:20]([C:30]([NH:29][C:25]3[CH:24]=[N:23][CH:28]=[CH:27][CH:26]=3)=[O:31])[CH2:19][CH2:18]2)=[N:5][CH:6]=[CH:7][CH:8]=1

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 6935890Phenyl pyridin-3-ylcarbamateHCID 668760903-Methyl-2-(3-(piperidin-4-ylidenemethyl)phenoxy)pyridine hydrochloride

Product 1

HCID 249644234-(3-(3-methylpyridin-2-yloxy)benzylidene)-N-(pyridin-3-yl)piperidine-1-carboxamideYield 78.3%

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent

Procedure

3-Methyl-2-(3-(piperidin-4-ylidenemethyl)phenoxy)pyridine hydrochloride (500 mg, 1.42 mmol, from Step 5), phenyl pyridin-3-ylcarbamate (333 mg, 1.56 mmol) and triethylamine (0.79 mL, 5.66 mmol) were combined in acetonitrile (10 mL) and stirred at room temperature. After 16 h, the reaction was concentrated forming a residue and the residue was partitioned between EtOAc and water. The organic layer was separated, dried over anhydrous sodium sulfate, filtered and concentrated. The residue was purified by silica gel chromatography (0-5%, (8:1 EtOH:conc. NH4OH):CH2Cl2) to afford the title compound (445 mg) as a foamy white solid. MS (APCI 10V) AP+ 401.4, 281.2; 1H NMR (400 MHz, CD3OD) δ ppm 2.33 (s, 3H) 2.44 (td, J=5.81, 1.29 Hz, 2H) 2.57 (td, J=5.92, 1.22 Hz, 2H) 3.50-3.57 (m, 2H) 3.61-3.68 (m, 2H) 6.44 (s, 1H) 6.83-6.94 (m, 2H) 7.00-7.09 (m, 2H) 7.28-7.41 (m, 2H) 7.64-7.74 (m, J=7.28, 2.03, 1.07, 1.07 Hz, 1H) 7.87-7.96 (m, 2H) 8.16 (dd, J=4.80, 1.44 Hz, 1H) 8.58 (dd, J=2.60, 0.72 Hz, 1H).

Workup

  1. concentrationthe reaction was concentrated
  2. customforming a residue
  3. customthe residue was partitioned between EtOAc and water
  4. customThe organic layer was separated
  5. dry with materialdried over anhydrous sodium sulfate
  6. filtrationfiltered
  7. concentrationconcentrated
  8. customThe residue was purified by silica gel chromatography (0-5%, (8:1 EtOH:conc. NH4OH):CH2Cl2)

Sources & evidence

ORD record
ord-3396251a53ff4a70ad09688b15b97fa0
Source dataset
uspto-grants-2011_10
Patent number
US08044052B2

Linked notes

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