Method for obtaining new intermediates useful for the preparation of synthesis fluoroquinolones.

摘要

PROCEDURE FOR OBTAINING NEW synthesis intermediates useful for the preparation of fluoroquinolones, particularly 2 ', 4' '- dichloro-5' '- fluoro-2-RBS1 SC-acetophenone, formula I, wherein RBS1 SC IS A RADICAL SC -COCCLSI3 -COCOOR O, wherein R is an alkyl radical of 1 to 4 carbons, based on the reaction of 2 '', 4 '' - dichloro-5 '' - fluoroacetophenone, with an ester in the presence of alkali metal salt of an alcohol of formula ROH, where R THE SIGNIFICANCE FORTH ABOVE. FLUOROQUINOLONES CITED ARE IMPORTANT antibacterials.