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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 39773Generated: October 28, 2026

Trifluoroacetic acid → HCID 59398267, compound

https://huagongshe.com/reaction/39773

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
ReactantMethyl 1-(2-(4-((tert-butoxycarbonyl)(2,3-dihydro-1,4-benzodioxin-6-ylmethyl)amino)piperidin-1-yl)ethyl)-7-methoxy-2-oxo-1,2-dihydroquinoline-3-carboxylateHCID 59398102—
SolventChloroformHCID 6212—
ProductHCID 59398267HCID 5939826785%

Reaction Steps

To 2 mL of a chloroform solution containing 0.31 g of methyl 1-(2-(4-((tert-butoxycarbonyl)(2,3-dihydro-1,4-benzodioxin-6-ylmethyl)amino)piperidin-1-yl)ethyl)-7-methoxy-2-oxo-1,2-dihydroquinoline-3-carboxylate, 1 mL of trifluoroacetic acid was added and stirred for 3 hours. The solvent was removed under reduced pressure, and aqueous saturated sodium hydrogen carbonate solution and ethyl acetate were added. The organic layer was separated, and the aqueous layer was extracted twice with ethyl acetate. The organic layer and extracts were combined, washed with aqueous saturated sodium chloride solution, dried over anhydrous magnesium sulfate, and the solvent was removed under reduced pressure to give 0.22 g of methyl 1-(2-(4-((2,3-dihydro-1,4-benzodioxin-6-ylmethyl)amino)piperidin-1-yl)ethyl)-7-methoxy-2-oxo-1,2-dihydroquinoline-3-carboxylate as a colorless oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08524738B2
Source datasetuspto-grants-2013_09
ORD IDord-b70125671e5a49f6ab3df8cae022ff27
Source noteuspto-grants-2013_09