申请人:Bayer Aktiengesellschaft
公开号:US04666920A1
公开(公告)日:1987-05-19
Antibacterially effective 1,7-diamino-1,4-dihydro-4-oxo-3-(aza)quinolinecarboxylic acids of the formula ##STR1## in which A is nitrogen or C--R.sup.1, R.sup.1 is nitro or halogen, R.sup.2 and R.sup.3 each independently is C.sub.1 -C.sub.3 -alkyl, or together with the nitrogen atom to which they are bonded, form a 5-membered or 6-membered heterocyclic ring, which can additionally contain the atoms or groups --O--, --S--, --SO--, --SO.sub.2 -- or .dbd.N--R.sup.4 as a ring member and can optionally be mono-, di- or tri-substituted on the carbon atoms by C.sub.1 -C.sub.3 -alkyl, hydroxyl, alkoxy with 1-3 carbon atoms, amino, methylamino or ethylamino, R.sup.4 is hydrogen, an alkyl or alkenyl group which has 1 to 4 carbon atoms and is optionally substituted by a hydroxyl, alkoxy, alkylmercapto, alkylamino or dialkylamino group with 1 to 3 carbon atoms per alkyl radical, the cyano group or an alkoxycarbonyl group with 1 to 4 carbon atoms in the alcohol part, or a benzyloxycarbonyl group, a phenylalkyl group which has up to 4 carbon atoms in the aliphatic part and is optionally substituted in the phenyl radical, a phenyl radical which is optionally monosubstituted or disubstituted by hydroxyl, methoxy, chlorine ad fluorine, a phenylacyl radical which is optionally monosubstituted or disubstituted by hydroxyl, methoxy, chlorine or fluorine, an oxoalkyl radical with up to 6 carbon atoms or a cycloalkyl-alkyl radical which has up to 6 carbon atoms in the cyclic part and up to 3 carbon atoms in the acyclic part, R.sup.5 and R.sup.6 each independently is hydrogen or an alkyl group with 1 to 4 carbon atoms, and X is hydrogen, a nitro group or halogen, or pharmaceutically acceptable salts thereof.
公式为 ##STR1## 的抗菌有效的1,7-二氨基-1,4-二氢-4-氧基-3-(氮)喹啉羧酸,其中A是氮或C--R.sup.1,R.sup.1是硝基或卤素,R.sup.2和R.sup.3各自独立地是C.sub.1-C.sub.3-烷基,或者与它们所结合的氮原子一起形成一个5-或6-成员的杂环环,该环还可以包含原子或基团--O--,--S--,--SO--,--SO.sub.2--或.dbd.N--R.sup.4作为环成员,并且可以在碳原子上选择性地被C.sub.1-C.sub.3-烷基,羟基,具有1-3个碳原子的烷氧基,氨基,甲氨基或乙氨基单独或二重取代,R.sup.4是氢,具有1到4个碳原子并且可以被具有1到3个碳原子的烷基基团的羟基,烷氧基,烷基硫醇,烷基氨基或二烷基氨基基团取代的烷基或烯基基团,氰基或醇部分具有1到4个碳原子的烷氧羰基基团,苄氧羰基基团,具有最多4个碳原子的脂肪部分并且在苯基基团中可以选择性地被羟基,甲氧基,氯或氟单独或双重取代的苯基烷基基团,可以选择性地被羟基,甲氧基,氯或氟单独或双重取代的苯基乙酰基基团,具有最多6个碳原子的氧代烷基基团或具有最多6个碳原子的环烷基-烷基基团,其中环烷基部分具有最多6个碳原子,非环烷基部分具有最多3个碳原子,R.sup.5和R.sup.6各自独立地是氢或具有1到4个碳原子的烷基基团,X是氢,硝基或卤素,或其药学上可接受的盐。