Tetrahydrofuran → 3-(3-(6-Phenoxymethyl-pyridin-3-ylmethyl)-isoxazol-5-yl)-pyridin-2,6-diamine

HRID 78098Notes

Reaction equation

HRID 78098 reaction equation
O1CCCC1.[O:6]([CH2:13][C:14]1[N:19]=[CH:18][C:17]([CH2:20][C:21](Cl)=[N:22][OH:23])=[CH:16][CH:15]=1)[C:7]1[CH:12]=[CH:11][CH:10]=[CH:9][CH:8]=1.[C:25]([C:27]1[C:28]([NH2:34])=[N:29][C:30]([NH2:33])=[CH:31][CH:32]=1)#[CH:26].C(N(CC)CC)C>O>[O:6]([CH2:13][C:14]1[N:19]=[CH:18][C:17]([CH2:20][C:21]2[CH:26]=[C:25]([C:27]3[C:28]([NH2:34])=[N:29][C:30]([NH2:33])=[CH:31][CH:32]=3)[O:23][N:22]=2)=[CH:16][CH:15]=1)[C:7]1[CH:12]=[CH:11][CH:10]=[CH:9][CH:8]=1

Participants

6

Reactant 4

HCID 8028TetrahydrofuranHCID 8471TriethylamineHCID 552816763-Ethynylpyridine-2,6-diamineHCID 72262856(6-Phenoxymethyl-pyridin-3-yl)acetohydroximoyl chloride

Product 1

HCID 592554763-(3-(6-Phenoxymethyl-pyridin-3-ylmethyl)-isoxazol-5-yl)-pyridin-2,6-diamineYield 29.9%

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

To a tetrahydrofuran (5.00 mL) solution of (6-phenoxymethyl-pyridin-3-yl)-acetohydroximoyl chloride (89.0 mg, 0.322 mmol) described in Manufacturing Example 54-1-6 and 3-ethynyl-pyridin-2,6-diamine (25.0 mg, 0.188 mmol) described in Manufacturing Example 13-1-3 was added triethylamine (78.6 μL, 0.564 mmol) at room temperature, which was stirred for 4.5 hours at room temperature. Water was added to the reaction solution at room temperature, which was extracted with ethyl acetate. The organic layer was washed with saturated aqueous sodium chloride and dried over anhydrous magnesium sulfate, and the solvent was evaporated under a reduced pressure. The residue was purified by NH silica gel column chromatography (ethyl acetate: heptane=1:1→3:1) to obtain the title compound (21.0 mg, 29.9%).

Workup

  1. extractionwhich was extracted with ethyl acetate
  2. washThe organic layer was washed with saturated aqueous sodium chloride
  3. dry with materialdried over anhydrous magnesium sulfate
  4. customthe solvent was evaporated under a reduced pressure
  5. customThe residue was purified by NH silica gel column chromatography (ethyl acetate: heptane=1:1→3:1)

Sources & evidence

ORD record
ord-c5bd147f651f4bd19811c1858fd85daf
Source dataset
uspto-grants-2014_09
Patent number
US08841327B2

Reaction notes

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