FIELD: organic chemistry, pharmacy. SUBSTANCE: invention relates to new antibacterial 5-(N-heterosubstituted- -amino)-quinolone compounds of the general formula (I) where (1) R1,R2,R3 form any of multiple quinolones and related heterocyclic structures that are similar with that exhibiting antibacterial activity, and (2) (a) R4 and R5 are independently hydrogen, lower alkyl, cycloalkyl, heteroalkyl or -C(=O)-X-R8 where X is covalent bond, N, O or S and R8 is lower alkyl, lower alkenyl, arylalkyl, carbocyclic ring, heterocyclic ring, or (b) R4 and R5 together form heterocyclic ring that involves nitrogen to which they are bound, and their pharmaceutically acceptable salts and biohydrolyzed esters and solvates. Also, invention relates to composition containing a compound of the formula (I) and a method of treatment and prophylaxis. EFFECT: improved method of synthesis, enhanced effectiveness of compounds. 18 cl
Authors
Dates
1999-02-10—Published
1993-10-22—Filed