Synthesis and antibacterial activities of substituted 7-oxo-2,3-dihydro-7H-pyrido(1,2,3-de)(1,4)benzoxazine-6-carboxylic acids.
作者:ISAO HAYAKAWA、TOKIYUKI HIRAMITSU、YOSHIAKI TANAKA
DOI:10.1248/cpb.32.4907
日期:——
As part of a search for new synthetic antibacterial agents to combat systemic infection, various analogues of 7-oxo-2, 3-dihydro-7H-pyrido [1, 2, 3-de] [1, 4] benzoxazine-6-carboxylic acids were synthesized. Among the compounds newly synthesized, 9-fluoro-3-methyl-10-(4-methyl-1-piperazinyl)-7-oxo-2, 3-dihydro-7H-pyrido [1, 2, 3-de] [1, 4] benzoxazine-6-carboxylic acid (DL-8280) showed potent antibacterial activity against Gram-positive and-negative pathogens, including Psedomonas aeruginosa, and its metabolic disposition was shown in separate experimentals to be favorable.
作为寻找新的合成抗菌剂以对抗全身感染的一部分,合成了多种7-氧代-2,3-二氢-7H-吡啶并[1,2,3-de][1,4]苯并噁嗪-6-羧酸类似物。在合成的新化合物中,9-氟-3-甲基-10-(4-甲基-1-哌嗪基)-7-氧代-2,3-二氢-7H-吡啶并[1,2,3-de][1,4]苯并噁嗪-6-羧酸(DL-8280)显示出对革兰氏阳性和阴性病原体,包括铜绿假单胞菌的强效抗菌活性,并且其代谢情况在单独的实验中显示为有利。