Tetrahydrofuran → 3-(3-(6-Phenoxy-pyridin-3-ylmethyl)-isoxazol-5-yl)-pyridin-2-ylamine

HRID 1891642Notes

Reaction equation

O1CCCC1.[O:6]([C:13]1[CH:18]=[CH:17][C:16]([CH2:19][C:20](Cl)=[N:21][OH:22])=[CH:15][N:14]=1)[C:7]1[CH:12]=[CH:11][CH:10]=[CH:9][CH:8]=1.[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>[O:6]([C:13]1[N:14]=[CH:15][C:16]([CH2:19][C:20]2[CH:25]=[C:24]([C:26]3[C:27]([NH2:32])=[N:28][CH:29]=[CH:30][CH:31]=3)[O:22][N:21]=2)=[CH:17][CH:18]=1)[C:7]1[CH:12]=[CH:11][CH:10]=[CH:9][CH:8]=1

Participants

Conditions

Temperature: 50 °C

Procedure

To a tetrahydrofuran (2 mL) solution of (2-phenoxy-pyridin-5-yl)-acetohydroximoyl chloride (100 mg, 0.381 mmol) described in Manufacturing Example 40-1-4 and 3-ethynyl-pyridin-2-ylamine (30 mg, 0.25 mmol) described in Manufacturing Example 1-2-3 was added triethylamine (71 μL, 0.51 mmol) under nitrogen atmosphere, which was stirred for 3 hours at 50° C. Water was added to the reaction mixture at room temperature, which was then extracted with ethyl acetate. The organic layer was separated, washed with water and saturated aqueous sodium chloride, dried over anhydrous magnesium sulfate, and filtered. The filtrate was concentrated under a reduced pressure, and the residue was purified by silica gel column chromatography (ethyl acetate:methanol=10:1) to obtain the title compound (27 mg, 31%).

Workup

extractionwhich was then extracted with ethyl acetate
customThe organic layer was separated
washwashed with water and saturated aqueous sodium chloride
dry with materialdried over anhydrous magnesium sulfate
filtrationfiltered
concentrationThe filtrate was concentrated under a reduced pressure
customthe residue was purified by silica gel column chromatography (ethyl acetate:methanol=10:1)

Sources & evidence

ORD record: ord-53300059d5ea4a9f8d87c4106945dfd0
Source dataset: uspto-grants-2013_08
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08507530B2

Reaction notes

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