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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2208665Generated: October 31, 2026

Trifluoroacetic acid → Methyl 3-[ethyl(piperidin-4-yl)amino]-2-methyl-5-(trifluoromethyl)benzoate TFA salt

https://huagongshe.com/reaction/2208665

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
Reactanttert-Butyl-4-{ethyl[3-(methoxycarbonyl)-2-methyl-5-(trifluoromethyl)phenyl]amino}piperidine-1-carboxylateHCID 86719531—
SolventDichloromethaneHCID 6344—
ProductMethyl 3-[ethyl(piperidin-4-yl)amino]-2-methyl-5-(trifluoromethyl)benzoate TFA saltHCID 131735971—

Reaction Steps

To a stirred solution of tert-butyl 4-{ethyl[3-(methoxycarbonyl)-2-methyl-5-(trifluoromethyl)phenyl]amino}piperidine-1-carboxylate (4.50 g, 10.1 mmol) in CH2Cl2 (50 mL) was added TFA (5 mL). The reaction mixture was stirred at rt for 18 hours. Then reaction mixture was concentrated in vacuo to give the titled compound as a crude product (7.70 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09376422B2
Source datasetuspto-grants-2016_06
ORD IDord-eeacfd416ee54ed3bedd83d3728eba4a
Source noteuspto-grants-2016_06