Pyridonecarboxylic acids as antibacterial agents. Synthesis and antibacterial activity of 7-(3-amino-1-pyrrolidinyl)-1-ethyl-6-fluoro-1,4-dihydro-4-oxo-1,8-naphthyridine-3-carboxylic acid and its analogs
作者:Hiroshi Egawa、Teruyuki Miyamoto、Akira Minamida、Yoshiro Nishimura、Hidetsugu Okada、Hitoshi Uno、Junichi Matsumoto
DOI:10.1021/jm00378a004
日期:1984.12
8-naphthyridine-3- carboxylic acids and their ethyl esters (3-7) with cyclic amines such as 3-aminopyrrolidine. The N-1 substituent includes ethyl, vinyl, and 2-fluoroethyl groups. As a result of in vitro and in vivo antibacterial screenings, three compounds, 1-ethyl- and 1-vinyl-7-(3-amino-1-pyrrolidinyl)-6-fluoro- 1,4-dihydro-4-oxo-1,8-naphthyridine-3-carboxylic acids (33a and 33b) and 1-vinyl-7-
用1-取代的7-氯-,7-(乙基磺酰基)-和7-(甲苯磺酰氧基)-制备在C-7具有氨基和/或羟基取代的环状氨基的标题化合物(28-56)。 6-氟-1,4-二氢-4-氧代-1,8-萘啶-3-羧酸及其乙酯(3-7)与环状胺,例如3-氨基吡咯烷。N-1取代基包括乙基,乙烯基和2-氟乙基。作为体外和体内抗菌筛选的结果,三种化合物,1-乙基和1-乙烯基-7-(3-氨基-1-吡咯烷基)-6-氟-1,4-二氢-4-氧代-发现1,8-萘啶-3-羧酸(33a和33b)和1-乙烯基-7- [3-(甲基氨基)-1-吡咯烷基]类似物34b具有比依诺沙星(2)更高的活性。值得进一步的生物学研究。讨论了构效关系。