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

Participants

Reaction Conditions

Reaction Steps

A 8 ml sealed vial was charged with 100 mg (0.187 mmol) of 2-[3,5-bis(trifluoromethyl)phenyl]-N-[6-chloro-4-(4-fluoro-2-methylphenyl) -3-pyridinyl]-N,2-dimethylpropanamide (WO 2005/002577), 98 mg (0.561 mmol) of hexahydro-2H -isothiazolo[2,3-a] pyrazine 1,1-dioxide (D10), 52 mg (0.374 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 dichloromethane; 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 44 mg (0.065 mmol) of the title compound as pale yellow solid.

Provenance & Evidence