Tetrahydrofuran → 3-(3-(4-(5-Chloro-furan-2-ylmethyl)-benzyl)-isoxazol-5-yl)-pyridin-2-ylamine

HRID 1891670Notes

Reaction equation

HRID 1891670 reaction equation
[Cl:1][C:2]1[O:6][C:5]([CH2:7][C:8]2[CH:13]=[CH:12][C:11]([CH2:14][C:15](Cl)=[N:16][OH:17])=[CH:10][CH:9]=2)=[CH:4][CH:3]=1.O1CCCC1.[C:24]([C:26]1[C:27]([NH2:32])=[N:28][CH:29]=[CH:30][CH:31]=1)#[CH:25].C(N(CC)CC)C>O>[Cl:1][C:2]1[O:6][C:5]([CH2:7][C:8]2[CH:13]=[CH:12][C:11]([CH2:14][C:15]3[CH:25]=[C:24]([C:26]4[C:27]([NH2:32])=[N:28][CH:29]=[CH:30][CH:31]=4)[O:17][N:16]=3)=[CH:10][CH:9]=2)=[CH:4][CH:3]=1

Participants

6

Reactant 4

HCID 8028TetrahydrofuranHCID 8471TriethylamineHCID 124225263-Ethynylpyridin-2-amineHCID 72262851(4-(5-Chloro-furan-2-ylmethyl)-phenyl)-acetohydroximoyl chloride

Product 1

HCID 441598423-(3-(4-(5-Chloro-furan-2-ylmethyl)-benzyl)-isoxazol-5-yl)-pyridin-2-ylamine

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Conditions

Temperature
55 °C

Procedure

To a mixture of (4-(5-chloro-furan-2-ylmethyl)-phenyl)-acetohydroximoyl chloride (25 mg, 0.088 mmol) described in Manufacturing Example 62-1-6 and tetrahydrofuran (1 mL) were added 3-ethynyl-pyridin-2-ylamine (8.0 mg, 0.068 mmol) described in Manufacturing Example 1-2-3 and triethylamine (19 μL, 0.14 mmol) at room temperature, which was stirred for 1 hour at 55° C. The mixture was cooled to room temperature and water was added at the same temperature, followed by extraction with ethyl acetate. The organic layer was washed with saturated aqueous sodium chloride, and the solvent was evaporated under a reduced pressure. The residue was purified by reverse-phase high performance liquid chromatography (using an acetonitrile-water mobile phase containing 0.1% trifluoracetic acid) to obtain the title compound as a crude product, and this was then purified by NH silica gel column chromatography (ethyl acetate:heptane=1:1) to obtain the title compound (3.8 mg, 15%).

Workup

  1. temperatureThe mixture was cooled to room temperature
  2. extractionfollowed by extraction with ethyl acetate
  3. washThe organic layer was washed with saturated aqueous sodium chloride
  4. customthe solvent was evaporated under a reduced pressure
  5. customThe residue was purified by reverse-phase high performance liquid chromatography (
  6. additioncontaining 0.1% trifluoracetic acid)

Sources & evidence

ORD record
ord-55cf933109634b5c9f47e0624e362f90
Source dataset
uspto-grants-2013_08
Patent number
US08507530B2

Reaction notes

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