7-(1-Pyrrolidinyl)-3-quinolone- and -naphthyridone-carboxylic acid derivatives as antibacterial agents and feed additives, of the formula ##STR1## in which X.sup.1 is halogen, X.sup.2 is hydrogen, halogen, amino or other radical, R.sup.1 is alkyl, cycloalkyl, optionally substituted phenyl or other radical, R.sup.2 is hydrogen, alkyl or a dioxolylmethyl radical, R.sup.3 is ##STR2## and A is N, CH, C-halogen, or the like, or forms a bridge with R.sup.1, and addition products thereof.
7-(1-Pyrrolidinyl)-3-
喹啉基和
萘啉基
羧酸衍
生物作为抗菌剂和饲料添加剂,其
化学式如下:##STR1##
其中,X1为卤素,X2为氢、卤素、
氨基或其他基团,R1为烷基、环烷基、可选择取代的苯基或其他基团,R2为氢、烷基或二氧杂环甲基基团,R3为##STR2##,A为N、CH、C-卤素或类似物,或与R1形成桥连的基团,以及其加成物。