Potassium Carbonate → 2-[3,5-Bis(trifluoromethyl)phenyl]-N-[6-(1,1-dioxidohexahydro-5H-isothiazolo[2,3-a]pyrazin-5-yl)-4-(2-methylphenyl)-3-pyridinyl]-N,2-dimethylpropanamide

HRID 421246Notes

Reaction equation

HRID 421246 reaction equation
[F:1][C:2]([F:35])([F:34])[C:3]1[CH:4]=[C:5]([C:13]([CH3:33])([CH3:32])[C:14]([N:16]([C:18]2[CH:19]=[N:20][C:21](Cl)=[CH:22][C:23]=2[C:24]2[CH:29]=[CH:28][CH:27]=[CH:26][C:25]=2[CH3:30])[CH3:17])=[O:15])[CH:6]=[C:7]([C:9]([F:12])([F:11])[F:10])[CH:8]=1.[S:36]1(=[O:46])(=[O:45])[N:40]2[CH2:41][CH2:42][NH:43][CH2:44][CH:39]2[CH2:38][CH2:37]1.C(=O)([O-])[O-].[K+].[K+].[NH4+].[Cl-]>CS(C)=O>[F:1][C:2]([F:35])([F:34])[C:3]1[CH:4]=[C:5]([C:13]([CH3:33])([CH3:32])[C:14]([N:16]([C:18]2[CH:19]=[N:20][C:21]([N:43]3[CH2:42][CH2:41][N:40]4[S:36](=[O:46])(=[O:45])[CH2:37][CH2:38][CH:39]4[CH2:44]3)=[CH:22][C:23]=2[C:24]2[CH:29]=[CH:28][CH:27]=[CH:26][C:25]=2[CH3:30])[CH3:17])=[O:15])[CH:6]=[C:7]([C:9]([F:12])([F:11])[F:10])[CH:8]=1

Participants

6

Reactant 4

HCID 11430Potassium CarbonateHCID 25517Ammonium ChlorideHCID 102295322-(3,5-bis(trifluoromethyl)phenyl)-N-(6-chloro-4-(o-tolyl)pyridin-3-yl)-N,2-dimethylpropanamideHCID 59215775Hexahydro-2H-isothiazolo[2,3-a]pyrazine 1,1-dioxide

Product 1

HCID 160636472-[3,5-Bis(trifluoromethyl)phenyl]-N-[6-(1,1-dioxidohexahydro-5H-isothiazolo[2,3-a]pyrazin-5-yl)-4-(2-methylphenyl)-3-pyridinyl]-N,2-dimethylpropanamideYield 75.9%

Reagents, catalysts & solvents 1

HCID 679Dimethyl SulfoxideSolvent

Conditions

Temperature
180 °C

Procedure

The title compound was prepared starting from 100 mg (0.161 mmoles) of 2-[3,5-bis(trifluoromethyl)phenyl]-N-[6-chloro-4-(2-methylphenyl)-3-pyridinyl]-N,2-dimethylpropanamide (WO 2005/002577), 85 mg (0.483 mmol) of hexahydro-2H-isothiazolo[2,3-a]pyrazine 1,1-dioxide (D10), 44.5 mg (0.322 mmol) of potassium carbonate; the reagents were dissolved in 0.8 ml of DMSO. The reaction mixture was heated at 180° C. for 36-48 hrs and then added to a saturated NH4Cl solution and back extracted with DCM; the crude material was purified on SPE cartridge (Silica) eluting with a gradient from cyclohexane/ethyl acetate 9:1, to cyclohexane/ethyl acetate 1:1 and affording 80 mg of the title compound as pale yellow solid.

Workup

  1. customThe title compound was prepared
  2. extractionback extracted with DCM
  3. customthe crude material was purified on SPE cartridge (Silica)
  4. washeluting with a gradient from cyclohexane/ethyl acetate 9:1, to cyclohexane/ethyl acetate 1:1

Sources & evidence

ORD record
ord-1fcc344f64c54c30b0b5d6093828a3f0
Source dataset
uspto-grants-2012_01
Patent number
US08097618B2

Reaction notes

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