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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2193155Generated: October 30, 2026

Trifluoroacetic acid → HCID 59398270, compound

https://huagongshe.com/reaction/2193155

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
Reactanttert-butyl (2,3-dihydro-1,4-benzodioxin-6-ylmethyl)(1-(2-(2-oxoquinoxalin-1(2H)-yl)ethyl)piperidin-4-yl)carbamateHCID 59397854—
SolventDichloromethaneHCID 6344—
ProductHCID 59398270HCID 5939827094.3%

Reaction Steps

To 3 mL of a dichloromethane solution containing 0.21 g of tert-butyl(2,3-dihydro-1,4-benzodioxin-6-ylmethyl)(1-(2-(2-oxoquinoxalin-1(2H)-yl)ethyl)piperidin-4-yl)carbamate, 3 mL of trifluoroacetic acid was added and stirred at room temperature for 1 hour. The solvent was removed under reduced pressure, chloroform and water were added, and adjusted to pH 13 with 20% aqueous sodium hydroxide solution. The organic layer was separated, and the aqueous layer was extracted with chloroform. The organic layer and extracts were combined, washed sequentially with water and aqueous saturated sodium chloride solution, dried over anhydrous magnesium sulfate, and the solvent was removed under reduced pressure to give 0.16 g of 1-(2-(4-((2,3-dihydro-1,4-benzodioxin-6-ylmethyl)amino)piperidin-1-yl)ethyl)quinoxalin-2(1H)-one as a light brown oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08329694B2
Source datasetuspto-grants-2012_12
ORD IDord-ebea528a5a394652b322de84387f16a4
Source noteuspto-grants-2012_12