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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1465749Generated: October 29, 2026

Trifluoroacetic acid → HCID 89525256, compound

https://huagongshe.com/reaction/1465749

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
Reactant1-Piperazinecarboxylic acid, 4-(3-cyano-7-quinolinyl)-3-oxo-, 1,1-dimethylethyl esterHCID 89526506—
ProductHCID 89525256HCID 89525256—

Reaction Steps

tert-Butyl 4-(3-cyanoquinolin-7-yl)-3-oxopiperazine-1-carboxylate was treated with TFA (2 mL) for 20 minutes at RT. The TFA was removed under vacuum, and the residue was dissolved in aqueous sodium carbonate, extracted with DCM, dried over sodium sulfate, and concentrated to deliver the free base of 7-(2-oxopiperazin-1-yl)quinoline-3-carbonitrile. LC-MS (IE, m/z): 253 [M+1]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08999991B2
Source datasetuspto-grants-2015_04
ORD IDord-a77b3b0b9ba04494aa91305013cc5217
Source noteuspto-grants-2015_04