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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 369277Generated: October 28, 2026

Hydrochloric Acid → HCID 23284806, compound

https://huagongshe.com/reaction/369277

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant2-AminopropanolHCID 5126—
Reactant1-(6-Amino-3,5-difluoro-2-pyridinyl)-8-chloro-6,7-difluoro-1,4-dihydro-4-oxo-3-quinolinecarboxylic acidHCID 15434901—
SolventPyridineHCID 1049—
ProductHCID 23284806HCID 2328480649%

Reaction Conditions

Temperature45 °C

Reaction Steps

1-(6-Amino-3,5-difluoropyridin-2-yl)-8-chloro-6,7-difluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (300 mg) and 2-amino-1-propanol (400 mg) were added to pyridine (1,200 mg), and the mixture was stirred at 45° C. for 16 hours. Concentrated hydrochloric acid (600 mg) was added to the reaction mixture, and the resultant mixture was concentrated under reduced pressure. Ethanol (2 ml) was added to the residue, and deposits were collected by filtration and washed with ethanol and diisopropyl ether in that order to obtain the title compound (168 mg) as a colorless powder.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06136823
Source datasetuspto-grants-2000_10
ORD IDord-ef60f438b238445ab4759b1439baf0e9
Source noteuspto-grants-2000_10