Tetrahydrofuran → 3-(3-(4-Cyclohexyloxy-benzyl)-isoxazol-5-yl)-pyridin-2-ylamine

HRID 1693975Notes

Reaction equation

O1CCCC1.[CH:6]1([O:12][C:13]2[CH:18]=[CH:17][C:16]([CH2:19][C:20](Cl)=[N:21][OH:22])=[CH:15][CH:14]=2)[CH2:11][CH2:10][CH2:9][CH2:8][CH2:7]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>[CH:6]1([O:12][C:13]2[CH:18]=[CH:17][C:16]([CH2:19][C:20]3[CH:25]=[C:24]([C:26]4[C:27]([NH2:32])=[N:28][CH:29]=[CH:30][CH:31]=4)[O:22][N:21]=3)=[CH:15][CH:14]=2)[CH2:11][CH2:10][CH2:9][CH2:8][CH2:7]1

Participants

Conditions

Temperature: 50 °C

Procedure

To a tetrahydrofuran (3 mL) solution of (4-cyclohexyloxy-phenyl)-acetohydroximoyl chloride (150 mg, 0.56 mmol) described in Manufacturing Example 79-1-4 and 3-ethynyl-pyridin-2-ylamine (42 mg, 0.357 mmol) described in Manufacturing Example 1-2-3 was added triethylamine (195 μL, 1.4 mmol), 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 (37 mg, 19%).

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-38c3a12ecb9d4c2b801eeba2aac9f068
Source dataset: uspto-grants-2012_04
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08158657B2

Reaction notes

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