1,8-naphthyridine compounds of the following formula
wherein X is a halogen atom especially fluorine or chlorine, R is an ethyl or vinyl group and R2 is a hydrogen atom or a lower alkyl group containing 1 to 6 carbon atoms, as well as hydrates and nontoxic pharmaceutically acceptable salts thereof.
Said compounds have high antibacterial activities against gram-positive and gram-negative bacteria including Pseudomonas aeruginosa and low toxicity and can be used as antibacterial agents.
下式中 X 为卤素原子,特别是
氟或
氯;R 为乙基或
乙烯基;R2 为氢原子或含有 1 至 6 个碳原子的低级烷基;
1,8-萘啶化合物及其
水合物和无毒的药学上可接受的盐。 上述化合物对包括
铜绿假单胞菌在内的革兰氏阳性菌和革兰氏阴性菌具有很高的抗菌活性,且毒性低,可用作抗菌剂。