Tetrahydrofuran → 3-(3-(3-Benzyloxy-benzyl)-isoxazol-5-yl)-pyridin-2-ylamine

HRID 1891666Notes

Reaction equation

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

Participants

Conditions

Temperature: 50 °C

Procedure

To a tetrahydrofuran (3 mL) solution of (3-benzyloxy-phenyl)-acetohydroximoyl chloride (200 mg, 0.724 mmol) described in Manufacturing Example 61-1-4 and 3-ethynyl-pyridin-2-ylamine (55 mg, 0.462 mmol) described in Manufacturing Example 1-2-3 was added triethylamine (252 μL, 1.81 mmol) at room temperature, which was stirred for 4 hours at 50° C. Water was added to the reaction solution at room temperature, which was then extracted with ethyl acetate. The organic layer was washed with water and 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 (heptane:ethyl acetate=4:1-2:1) to obtain the title compound (58 mg, 22%).

Workup

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

Sources & evidence

ORD record: ord-8bb96cb46dfc440f95e3700c6ebb7685
Source dataset: uspto-grants-2013_08
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08507530B2

Reaction notes

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