Water → 3-{4-[4-Methanesulfinylmethyl-2-(4-trifluoromethyl-phenyl)-thiazol-5-ylmethoxy]-2-methoxy-phenyl}-4h-1,2,4-oxadiazol-5-one

HRID 2263427Notes

Reaction equation

HRID 2263427 reaction equation
[CH3:1][O:2][C:3]1[CH:8]=[C:7]([O:9][CH2:10][C:11]2[S:15][C:14]([C:16]3[CH:21]=[CH:20][C:19]([C:22]([F:25])([F:24])[F:23])=[CH:18][CH:17]=3)=[N:13][C:12]=2[CH2:26][S:27][CH3:28])[CH:6]=[CH:5][C:4]=1[C:29]1[NH:33][C:32](=[O:34])[O:31][N:30]=1.ClC1C=CC=C(C(OO)=[O:43])C=1.O>CN(C)C=O>[CH3:28][S:27]([CH2:26][C:12]1[N:13]=[C:14]([C:16]2[CH:21]=[CH:20][C:19]([C:22]([F:23])([F:24])[F:25])=[CH:18][CH:17]=2)[S:15][C:11]=1[CH2:10][O:9][C:7]1[CH:6]=[CH:5][C:4]([C:29]2[NH:33][C:32](=[O:34])[O:31][N:30]=2)=[C:3]([O:2][CH3:1])[CH:8]=1)=[O:43]

Participants

5

Reactant 3

HCID 962WaterHCID 70297m-Chloroperbenzoic acidHCID 1354464043-{2-Methoxy-4-[4-methylsulfanylmethyl-2-(4-trifluoromethyl-phenyl)-thiazol-5-ylmethoxy]-phenyl}-4h-1,2,4-oxadiazol-5-one

Product 1

HCID 1361499433-{4-[4-Methanesulfinylmethyl-2-(4-trifluoromethyl-phenyl)-thiazol-5-ylmethoxy]-2-methoxy-phenyl}-4h-1,2,4-oxadiazol-5-oneYield 75.7%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

To a solution of 32 mg of 3-{2-methoxy-4-[4-methylsulfanylmethyl-2-(4-trifluoromethyl-phenyl)-thiazol-5-ylmethoxy]-phenyl}-4H-1,2,4-oxadiazol-5-one in 4 mL of dimethylformamide was added 15 mg of metachloroperbenzoic acid. The resulting mixture was stirred for 45 min at room temperature, then poured into water and extracted with dichloromethane. The organic extracts were washed with a saturated aqueous solution if sodium bicarbonate and concentrated under reduced pressure. The crude product was purified by column chromatography on silica gel (gradient of methanol in dichloromethane) to give 25 mg of 3-{4-[4-methanesulfinylmethyl-2-(4-trifluoromethyl-phenyl)-thiazol-5-ylmethoxy]-2-methoxy-phenyl}-4H-1,2,4-oxadiazol-5-one as a white solid which was further purified by trituration with diisopropyl ether.

Workup

  1. extractionextracted with dichloromethane
  2. washThe organic extracts were washed with a saturated aqueous solution if sodium bicarbonate
  3. concentrationconcentrated under reduced pressure
  4. customThe crude product was purified by column chromatography on silica gel (gradient of methanol in dichloromethane)

Sources & evidence

ORD record
ord-9c8d20054c6343e58f9a38526a69f73e
Source dataset
uspto-grants-2010_12
Patent number
US07851493B2

Reaction notes

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