Potassium Carbonate → Methyl 3-{[5-(azetidin-1-ylcarbonyl)-3-chloropyridin-2-yl]oxy}-5-[(3S)-tetrahydrofuran-3-yloxy]benzoate

HRID 1990245Notes

Reaction equation

HRID 1990245 reaction equation
[OH:1][C:2]1[CH:3]=[C:4]([CH:9]=[C:10]([O:12][C@H:13]2[CH2:17][CH2:16][O:15][CH2:14]2)[CH:11]=1)[C:5]([O:7][CH3:8])=[O:6].C(=O)([O-])[O-].[K+].[K+].[N:24]1([C:28]([C:30]2[CH:31]=[C:32]([Cl:37])[C:33](Cl)=[N:34][CH:35]=2)=[O:29])[CH2:27][CH2:26][CH2:25]1>CC(N(C)C)=O.C(OCC)(=O)C>[N:24]1([C:28]([C:30]2[CH:31]=[C:32]([Cl:37])[C:33]([O:1][C:2]3[CH:3]=[C:4]([CH:9]=[C:10]([O:12][C@H:13]4[CH2:17][CH2:16][O:15][CH2:14]4)[CH:11]=3)[C:5]([O:7][CH3:8])=[O:6])=[N:34][CH:35]=2)=[O:29])[CH2:27][CH2:26][CH2:25]1

Participants

6

Reactant 3

HCID 11430Potassium CarbonateHCID 536296165-(Azetidin-1-ylcarbonyl)-2,3-dichloropyridineHCID 59127189Methyl 3-hydroxy-5-{[(3S)-oxolan-3-yl]oxy}benzoate

Product 1

HCID 53629676Methyl 3-{[5-(azetidin-1-ylcarbonyl)-3-chloropyridin-2-yl]oxy}-5-[(3S)-tetrahydrofuran-3-yloxy]benzoateYield 82.5%

Reagents, catalysts & solvents 2

HCID 8857Ethyl AcetateSolventHCID 31374DimethylacetamideSolvent

Procedure

A solution of methyl 3-hydroxy-5-[(3S)-tetrahydrofuran-3-yloxy]benzoate (2.5 g, 10.5 mmol), potassium carbonate (2.9 g, 21.0 mmol) and 5-(azetidin-1-ylcarbonyl)-2,3-dichloropyridine (2.9 g, 12.6 mmol) in DMA (25 mL) was heated at 120° C. for 5 hours. The solution was diluted with ethyl acetate (150 mL), washed with water (3×50 mL), brine (20 mL), dried (MgSO4), filtered and the solvent removed in vacuo. The residue was purified by chromatography on silica, eluting with 20-50% ethyl acetate in isohexane, to give the desired compound as a colourless oil (3.75 g). 1H NMR δ (CDCl3): 2.13-2.29 (m, 2H), 2.38 (quin, 2H), 3.85-4.04 (m, 4H), 3.90 (s, 3H), 4.19-4.37 (m, 4H), 4.96-5.00 (m, 1H), 6.91 (t, 1H), 7.42-7.45 (m, 2H), 8.14 (d, 1H), 8.25 (d, 1H); m/z 433 (M+H)+.

Workup

  1. washwashed with water (3×50 mL), brine (20 mL)
  2. dry with materialdried (MgSO4)
  3. filtrationfiltered
  4. customthe solvent removed in vacuo
  5. customThe residue was purified by chromatography on silica
  6. washeluting with 20-50% ethyl acetate in isohexane

Sources & evidence

ORD record
ord-e33c2d6206fa467aa15bb37fd938ed9e
Source dataset
uspto-grants-2010_01
Patent number
US07642259B2

Reaction notes

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