7 - (4 - piridi1) - 1.8 - naftiridin - is you.

摘要

A 7-(4-pyridyl)-1,8-naphthyridine compound of the formula IMAGE wherein R1 is a hydrogen atom, an ethyl or vinyl group, and R2 is a hydrogen atom or a lower alkyl group having 1 to 6 carbon atoms, and a salt thereof. The compounds represented by the formula are useful in antibacterial compositions or intermediates thereof.