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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2094382Generated: November 2, 2026

Dimethylformamide → HCID 66880158, compound

https://huagongshe.com/reaction/2094382

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethylformamideHCID 6228—
ReactantPotassium CarbonateHCID 11430—
ReactantPyrrolidineHCID 31268—
Reactant2-(3-Fluoropyridin-4-yl)-5-(trifluoromethyl)benzoxazoleHCID 66880180—
SolventWaterHCID 962—
ProductHCID 66880158HCID 66880158101.1%

Reaction Conditions

Temperature60 °C

Reaction Steps

A mixture of 0.31 g of 2-(3-fluoropyridin-4-yl)-5-(trifluoromethyl)benzoxazole, 0.21 g of pyrrolidine, 0.55 g of potassium carbonate and 2 ml of DMF was stirred while heating at 60° C. for one hour. The reaction mixture was cooled to room temperature, and then water was added to the reaction mixture, followed by extraction with ethyl acetate twice. The combined organic layers were washed with a saturated sodium chloride solution, dried over anhydrous magnesium sulfate, and then concentrated under reduced pressure. The residue was subjected to silica gel column chromatography to give 0.37 g of 2-[3-(pyrrolidine-1-yl)pyridin-4-yl]-5-(trifluoromethyl)benzoxazole (hereinafter, referred to as “active compound 53”).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08445522B2
Source datasetuspto-grants-2013_05
ORD IDord-e2beecb5360a4171849ddcfba5977998
Source noteuspto-grants-2013_05