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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2165628Generated: November 1, 2026

7-Chloro-1-ethyl-6-fluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid → HCID 14839371, compound

https://huagongshe.com/reaction/2165628

Reaction equation

Participants

RoleNameHCIDCharge
Reactant7-Chloro-1-ethyl-6-fluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acidHCID 483169—
Reactant2-(Thiophen-3-yl)piperazineHCID 16740794—
SolventPyridineHCID 1049—
ProductHCID 14839371HCID 1483937127.5%

Reaction Steps

A mixture of 1 g of 2-(3-thienyl)piperazine and 538 mg of 7-chloro-1-ethyl-6-fluoro-1,4-dihydro-4-oxo-3-quinolinecarboxylic acid in 8 ml of pyridine was further reacted as described in Example 26 giving 220 mg of the desired product, mp 198°-200° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04940710
Source datasetuspto-grants-1990_07
ORD IDord-141ffa2a27224bf6a408ccb8997a6d72
Source noteuspto-grants-1990_07