Triphenylphosphine → 1-(2,3-Dimethylindazol-5-yl)-4-[[2-(trifluoromethyl)-1,3-thiazol-4-yl]methoxy]pyridin-2-one

HRID 1497402

Reaction equation

HRID 1497402 reaction equation
[CH3:1][N:2]1[C:10]([CH3:11])=[C:9]2[C:4]([CH:5]=[CH:6][C:7]([N:12]3[CH:17]=[CH:16][C:15]([OH:18])=[CH:14][C:13]3=[O:19])=[CH:8]2)=[N:3]1.[F:20][C:21]([F:30])([F:29])[C:22]1[S:23][CH:24]=[C:25]([CH2:27]O)[N:26]=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1>O1CCCC1.C(OCC)(=O)C>[CH3:1][N:2]1[C:10]([CH3:11])=[C:9]2[C:4]([CH:5]=[CH:6][C:7]([N:12]3[CH:17]=[CH:16][C:15]([O:18][CH2:27][C:25]4[N:26]=[C:22]([C:21]([F:30])([F:29])[F:20])[S:23][CH:24]=4)=[CH:14][C:13]3=[O:19])=[CH:8]2)=[N:3]1

Participants

6

Reactant 3

HCID 11776TriphenylphosphineHCID 20079604[2-(Trifluoromethyl)-1,3-thiazol-4-yl]methanolHCID 1177986701-(2,3-dimethyl-2H-indazol-5-yl)-4-hydroxypyridin-2(1H)-one

Product 1

HCID 1177986801-(2,3-Dimethylindazol-5-yl)-4-[[2-(trifluoromethyl)-1,3-thiazol-4-yl]methoxy]pyridin-2-oneYield 12.5%

Reagents, catalysts & solvents 2

HCID 8028TetrahydrofuranSolventHCID 8857Ethyl AcetateSolvent

Procedure

To a suspension of 1-(2,3-dimethyl-2H-indazol-5-yl)-4-hydroxypyridin-2(1H)-one (63 mg), [2-(trifluoromethyl)-1,3-thiazol-4-yl]methanol (90 mg) and triphenylphosphine (193 mg) in tetrahydrofuran (6 ml) was added bis(2-methoxyethyl)azodicarboxylate (173 mg) at room temperature, and the mixture was stirred at the same temperature for 3 hr. The reaction mixture was diluted with ethyl acetate, washed with water and saturated brine, dried over anhydrous magnesium sulfate, and concentrated under reduced pressure. The obtained residue was purified by silica gel column chromatography (ethyl acetate/methanol) to give the title compound (13 mg).

Workup

  1. washwashed with water and saturated brine
  2. dry with materialdried over anhydrous magnesium sulfate
  3. concentrationconcentrated under reduced pressure
  4. customThe obtained residue was purified by silica gel column chromatography (ethyl acetate/methanol)

Sources & evidence

ORD record
ord-43c01e42f8374d8cbad137f83be78799
Source dataset
uspto-grants-2015_12
Patent number
US09199963B2

Linked notes

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