Hydrochloric Acid → HCID 14652622, 화합물

참여 물질

반응 단계

A solution of 500 mg of 1-ethyl-6,8-difluoro-7-[2-(formylaminomethyl)morpholino]-1,4-dihydro-4-oxoquinoline-3-carboxylic acid, 1 ml of concentrated hydrochloric acid, 2 ml of water and 10 ml of methanol is refluxed for 1.5 hours. The reaction mixture is concentrated under reduced pressure. The obtained crystals are washed with acetone, collected by filtration and recrystallized from dimethylformamide to give 7-[2-(aminomethyl)morpholino]-1-ethyl-6,8-difluoro-1,4-dihydro-4-oxoquinoline-3-carboxylic acid hydrochloride, melting at 276°-278° C. with decomposition.

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