Tetrahydrofuran → 3-(3-(5-(4-Fluoro-phenoxy)-thiophen-2-ylmethyl)-isoxazol-5-yl)-pyridin-2-ylamine

HRID 640341Notes

Reaction equation

O1CCCC1.[F:6][C:7]1[CH:23]=[CH:22][C:10]([O:11][C:12]2[S:16][C:15]([CH2:17][C:18](Cl)=[N:19][OH:20])=[CH:14][CH:13]=2)=[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>[F:6][C:7]1[CH:23]=[CH:22][C:10]([O:11][C:12]2[S:16][C:15]([CH2:17][C:18]3[CH:25]=[C:24]([C:26]4[C:27]([NH2:32])=[N:28][CH:29]=[CH:30][CH:31]=4)[O:20][N:19]=3)=[CH:14][CH:13]=2)=[CH:9][CH:8]=1

Participants

Conditions

Temperature: 60 °C

Procedure

To a tetrahydrofuran (5.00 mL) solution of (5-(4-fluoro-phenoxy)-thiophen-2-yl)-acetohydroximoyl chloride (250 mg, 0.875 mmol) described in Manufacturing Example 91-1-4 and 3-ethynyl-pyridin-2-ylamine (50.0 mg, 0.423 mmol) described in Manufacturing Example 1-2-3 was added triethylamine (177 μL, 1.27 mmol) at room temperature, which was stirred for 30 minutes at 60° C. Water was added to the reaction solution at room temperature, which was then 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=1:2→1:1) to obtain the title compound (11.2 mg, 7.21%).

Workup

extractionwhich was then extracted with ethyl acetate
washThe organic layer was washed with 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 (ethyl acetate:heptane=1:2→1:1)

Sources & evidence

ORD record: ord-9442c137fbcd4ac696742595a88ed20b
Source dataset: uspto-grants-2010_04
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07691882B2

Reaction notes

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