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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 421289Generated: October 31, 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/421289

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 numberUS08097618B2
Source datasetuspto-grants-2012_01
ORD IDord-3125e3087b494e1996c7bcf22fe595e3
Source noteuspto-grants-2012_01