FIELD: in medicine, more specifically as antimicrobial agents. SUBSTANCE: the product includes optically active pyridobenzoxazine derivatives of the formula: wherein R1 and R2 are the same or different, C1-C4-alkyl; R3 is hydrogen; R4 is methyl having β-configuration; R5 is hydrogen or methyl; X is fluorine or chlorine, or salts thereof. EFFECT: improved properties of the title compounds. 4 cl, 6 tbl
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| METHOD OF SYNTHESIS OF 8-CHLOROQUINOLONE DERIVATIVE | 1991 |
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| BICYCLIC DERIVATIVES OF 1,4-DIHYDRO-4-OXOQUINOLINE-3-CARBOXYLIC ACID OR THEIR SALTS AND PHARMACEUTICAL COMPOSITION SHOWING ANTIBACTERIAL ACTIVITY | 1993 |
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| DERIVATIVES OF PYRIMIDINYLPYRAZOLE AND ANTITUMOR AGENT | 1995 |
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RU2146675C1 |
| CYCLOALKYL-SUBSTITUTED DERIVATIVES OF AMINOMETHYLPYRROLIDINE AND ANTIBACTERIAL AGENT BASED ON THEREOF | 1999 |
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RU2248970C2 |
| DIAZABICYCLOALKENE DERIVATIVES AND PHARMACEUTICAL COMPOSITION | 1993 |
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| HEXACYCLIC COMPOUND | 1992 |
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| AGENT AGAINST ACID-RESISTANT MICROORGANISMS CONTAINING PYRIDONE CARBOXYLIC ACIDS AS ACTIVE COMPONENT | 2001 |
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RU2299205C2 |
