Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 56954Generated: October 31, 2026

Trifluoroacetic acid → 2-[4-(5-Chloro-2-cyanophenyl)-2-oxopyridin-1(2H)-yl]-N-[4-(5-oxo-2,5-dihydro-1H-pyrazol-3-yl)phenyl]propanamide

https://huagongshe.com/reaction/56954

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
Reactanttert-Butyl 5-[4-({2-[4-(5-chloro-2-cyanophenyl)-2-oxopyridin-1(2H)-yl]propanoyl}amino)phenyl]-3-oxo-2,3-dihydro-1H-pyrazole-1-carboxylateHCID 117622739—
Product2-[4-(5-Chloro-2-cyanophenyl)-2-oxopyridin-1(2H)-yl]-N-[4-(5-oxo-2,5-dihydro-1H-pyrazol-3-yl)phenyl]propanamideHCID 117622742—

Reaction Steps

110 mg (0.20 mmol) of tert-butyl 5-[4-({2-[4-(5-chloro-2-cyanophenyl)-2-oxopyridin-1(2H)-yl]propanoyl}amino)phenyl]-3-oxo-2,3-dihydro-1H-pyrazole-1-carboxylate (racemate) (Example 2.3A) were hydrolysed with TFA according to General Method 2. Yield: 24 mg (27% of theory)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09434690B2
Source datasetuspto-grants-2016_09
ORD IDord-6ff066a89fa64e5293e94dddccd43b93
Source noteuspto-grants-2016_09