This invention relates to 1,8-naphthyridine compounds of the formula ##STR1## wherein X is a halogen atom especially fluorine atom, R.sub.1 is an ethyl group or a vinyl group, and R.sub.2 is a hydrogen atom or a lower alkyl group, their salts and processes for the preparation of them. The 1,8-naphthyridine compounds and their salts are useful as antibacterial agents and intermediates thereof.
本发明涉及
1,8-萘啶化合物,其
化学式为##STR1##其中X是卤素原子,尤其是
氟原子,R.sub.1是乙基基团或
乙烯基团,R.sub.2是氢原子或低碳基基团,它们的盐和制备它们的过程。这些
1,8-萘啶化合物及其盐可用作抗菌剂及其中间体。