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

HRID 1891897Notes

Reaction equation

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

Participants

Conditions

Temperature: 60 °C

Procedure

To a tetrahydrofuran (7.00 mL) solution of (2-benzyloxy-pyridin-5-yl)-acetohydroximoyl chloride (191 mg, 0.690 mmol) described in Manufacturing Example 12-1-5 and 5-ethynyl-pyridin-2-ylamine (40.0 mg, 0.339 mmol) described in Manufacturing Example 28-1-3 was added triethylamine (142 μL, 1.02 mmol) under nitrogen atmosphere at room temperature, which was stirred for 3 hours at 60° C. Water was added to the reaction mixture 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→2:1) to obtain the title compound (15.7 mg, 12.9%).

Workup

extractionwhich was 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=1:1→2:1)

Sources & evidence

ORD record: ord-0e6a4609e3c342398386486092f02080
Source dataset: uspto-grants-2013_08
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08507530B2

Reaction notes

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