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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1715038Generated: November 1, 2026

1,2-Dichloroethane → N-(1-(3-Bromo-7-fluoro-4-oxo-4H-pyrido[1,2-a]pyrimidin-2-yl)ethyl)-N-(2-(ethylsulfonyl)ethyl)-2-(4-fluoro-3-(trifluoromethyl)phenyl)acetamide

https://huagongshe.com/reaction/1715038

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,2-DichloroethaneHCID 11—
Reactant4-MethylmorpholineHCID 7972—
Reactant1-HydroxybenzotriazoleHCID 75771—
Reactant4-Fluoro-3-(trifluoromethyl)phenylacetic acidHCID 2737593—
Reactant3-Bromo-2-(1-(2-(ethylsulfonyl)ethylamino)ethyl)-7-fluoro-4H-pyrido[1,2-a]pyrimidin-4-oneHCID 58796896—
SolventWaterHCID 962—
SolventDimethylformamideHCID 6228—
SolventEthyl AcetateHCID 8857—
SolventDichloromethane ethylacetateHCID 21226138—
ProductN-(1-(3-Bromo-7-fluoro-4-oxo-4H-pyrido[1,2-a]pyrimidin-2-yl)ethyl)-N-(2-(ethylsulfonyl)ethyl)-2-(4-fluoro-3-(trifluoromethyl)phenyl)acetamideHCID 5879690397.9%

Reaction Steps

To a flask with E4 (310 mg, 0.77 mmol) was added 2-(4-fluoro-3-(trifluoromethyl)phenyl)acetic acid (187 mg, 0.84 mmol), EDC (440 g, 2.3 mmol), HOBt (52 mg, 0.38 mmol), followed by 14 mL of anhydrous DMF and N-methyl morpholine (0.25 mL, 2.3 mmol). The reaction was stirred at room temperature overnight and worked up with ethyl acetate and water. Column chromatography with gradient ethyl acetate/dichloromethane (3:1 to 2:1 to 1:1) gave 460 mg E5 as an yellow foamy solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07799795B2
Source datasetuspto-grants-2010_09
ORD IDord-98c436baca164e50a1e5e7ccc9003fa9
Source noteuspto-grants-2010_09