| 摘要 |
New 1,8-naphtyridine derivatives(1), useful as an antibacterial agent, is prepared by reacting compound(VI) and R1-W or R2-W. In formula, A is cycloamine group, R1 and R2 are H, halogen, C1-C4 alkenyl, or benzyl, R3 is H, halogen, hydroxy, C1-C4 alkyl, C1-C4 alkenyl, or benzyl, R3 is H, halogen, hydroxy, C1-C4 alkenyl, benzyl, nitro, or cyano, B is cycloalky or halgen substituted aromatic ring.
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