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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 369226Generated: October 29, 2026

Ethylenediamine → 7-(2-Aminoethyl)amino-1-(5-amino-2,4-difluorophenyl)-8-chloro-6-fluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic Acid

https://huagongshe.com/reaction/369226

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthylenediamineHCID 3301—
ReactantTriethylamineHCID 8471—
Reactant1-(3-Amino-4,6-difluorophenyl)-8-chloro-6,7-difluoro-1,4-dihydro-4-oxoquinoline-3-carboxylic acidHCID 10861999—
SolventAcetonitrileHCID 6342—
Product7-(2-Aminoethyl)amino-1-(5-amino-2,4-difluorophenyl)-8-chloro-6-fluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic AcidHCID 2328481665.2%

Reaction Steps

1-(5-Amino-2,4-difluorophenyl)-8-chloro-6,7-difluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (100 mg), ethylenediamine (16 mg) and triethylamine (70 mg) were added to acetonitrile (5 ml), and the mixture was heated under reflux for 2 hours. After the reaction mixture was allowed to cool, deposits were collected by filtration. The deposits were washed successively with ethanol and diethyl ether to obtain the title compound (72 mg) as a pale yellow powder.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06136823
Source datasetuspto-grants-2000_10
ORD IDord-8c051533994245df9eca183ed04e9055
Source noteuspto-grants-2000_10