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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2074936Generated: October 30, 2026

Potassium Carbonate → 2-[3,5-bis(trifluoromethyl)phenyl]-N-[6-(hexahydropyrazino[2,1-c][1,4]oxazin-8(1H)-yl)-4-(2-methylphenyl)-3-pyridinyl]-N,2-dimethylpropanamide

https://huagongshe.com/reaction/2074936

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
Reactant2-(3,5-bis(trifluoromethyl)phenyl)-N-(6-chloro-4-(o-tolyl)pyridin-3-yl)-N,2-dimethylpropanamideHCID 10229532—
ReactantOctahydropiperazino[2,1-c]morpholineHCID 19777228—
SolventDimethyl SulfoxideHCID 679—
SolventDichloromethaneHCID 6344—
Product2-[3,5-bis(trifluoromethyl)phenyl]-N-[6-(hexahydropyrazino[2,1-c][1,4]oxazin-8(1H)-yl)-4-(2-methylphenyl)-3-pyridinyl]-N,2-dimethylpropanamideHCID 1606361538.2%

Reaction Steps

A solution of 2-[3,5-bis(trifluoromethyl)phenyl]-N-[6-chloro-4-(2-methylphenyl)-3-pyridinyl]-N,2-dimethylpropanamide [WO 2002/16324A1] (200 mg, 0.388 mmol), octahydropyrazino[2,1-c][1,4]oxazine (EP472826, 111 mg, 0.776 mmol), and potassium carbonate (161 mg, 1.165 mmol) in 1 mL of DMSO was heated to 150° C. for 47 h. It was worked up by diluting with dichloromethane and extracting with brine. The organics were dried (Na2SO4), and the solvent removed. The product was purified by flash chromatography: silica, dichloromethane to dichloromethane: MeOH 95:5. Obtained 92 mg of the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07919491B2
Source datasetuspto-grants-2011_04
ORD IDord-135686041900402886068895f7d7f9dd
Source noteuspto-grants-2011_04