7-Chloro-1-ethyl-6-fluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid → HCID 14839363, compound

Participants

Reaction Steps

A 2 g portion of 2-(3-methylbenzo[b]thien-2-yl)piperazine was added to 7 ml of pyridine. A 780 mg portion of 7-chloro-1-ethyl-6-fluoro-1,4-dihydro-4-oxo-3-quinolinecarboxylic acid was added and the mixture was heated in a pressure bottle, under argon at 120°-130° C. for 18 hours. The solid was collected, washed with pyridine, then ether and recrystallized from dimethylformamide, giving 540 mg of the desired product, mp 302°-304° C. (dec.).

Provenance & Evidence