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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2193533Generated: October 31, 2026

Water → 7-chloro-6-fluoro-1-(5-fluoro-pyridin-2-yl)-4-oxo-1,4-dihydro-quinoline-3-carboxylic Acid

https://huagongshe.com/reaction/2193533

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantHCID 67274049HCID 67274049—
SolventAcetic AcidHCID 176—
SolventHydrochloric AcidHCID 313—
Product7-chloro-6-fluoro-1-(5-fluoro-pyridin-2-yl)-4-oxo-1,4-dihydro-quinoline-3-carboxylic AcidHCID 67273993—

Reaction Conditions

Temperature90 °C

Reaction Steps

A suspension of 0.5 g 7-chloro-6-fluoro-1-(5-fluoro-pyridin-2-yl)-4-oxo-1,4-dihydro-quinoline-3-carboxylic acid ethyl ester (1.37 mmol) in a mixture of 1.5 ml acetic acid and 1.5 ml 25% HCl was stirred at 90° C. over night. The reaction was monitored by HPLC. The suspension was poured into 50 ml water, the colorless crystals filtered and dried.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08329908B2
Source datasetuspto-grants-2012_12
ORD IDord-0b15046dc1ad49a29cb03e0187f37e91
Source noteuspto-grants-2012_12