Quinolonecarboxylic acid derivatives of the following formula, ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are each independently hydrogen atom or lower alkyl group; the hydrates or the pharmaceutically acceptable acid addition or alkali salts thereof are useful as an antibacterial agent.
Pyridonecarboxylic acid derivatives and antibacterial pharmaceutical
申请人:Kyorin Pharmaceutical Co., Ltd.
公开号:US04753953A1
公开(公告)日:1988-06-28
Pyridonecarboxylic acid derivatives of the following formula, ##STR1## wherein R is hydrogen atom or lower alkyl group, R.sup.1 is lower alkyl group, cycloalkyl group or haloalkyl group, Y is hydrogen atom or halogen atom, or Y and R.sup.1 are ##STR2## which work together, R.sup.2 is hydrogen atom, lower alkyl group, alkoxycarbonyl group or acyl group and n is 0 or 1; the hydrates and pharmaceutically acceptable salts thereof are useful as antibacterial agents.
Quinolonecarboxylic acid derivative and process for its preparation
申请人:KYORIN PHARMACEUTICAL CO., LTD.
公开号:EP0207497A2
公开(公告)日:1987-01-07
Quinolonecarboxylic acid derivative of the follow- ng formula;
hydrates and pharmaceutically acceptable salts thereof are useful as an antibacterial agent.
以下式子的醌羧酸衍生物;
其水合物和药学上可接受的盐类可用作抗菌剂。
Pyridonecarboxylic acid derivatives and process for their preparation
申请人:KYORIN PHARMACEUTICAL CO., LTD.
公开号:EP0208210A1
公开(公告)日:1987-01-14
Pyridonecarboxylic acid derivatives of the following formula.
wherein R is hydrogen atom or lower alkyl group, R1 is lower alkyl group, cycloalkyl group or haloalkyl group, Y is hydrogen atom or halogen atom, or Y and R1 are
which work together, R2 is hydrogen atom, lower alkyl group, alkoxycarbonyl group or acyl group and n is 0 or 1; the hydrates and pharmaceutically acceptable salts thereof are useful as antibacterial agents.
下式的吡啶羧酸衍生物。
其中 R 是氢原子或低级烷基,R1 是低级烷基、环烷基或卤代烷基,Y 是氢原子或卤素原子,或 Y 和 R1 是
共同作用,R2 是氢原子、低级烷基、烷氧羰基或酰基,n 是 0 或 1;其水合物和药学上可接受的盐可用作抗菌剂。
申请人:KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
公开号:EP0549857A1
公开(公告)日:1993-07-07
The present invention relates to certain novel quinolone compounds of the present invention represented by the following formula(I) and novel processes for preparing same.
wherein:
X isa nitrogen atom or a C-Y group wherein Y is a hydrogen, fluorine, chlorine or bromine atom or a methoxy or methyl group;
R₁ isa C₁₋₆ alkyl group optionally substituted with a halogen atom or a hydroxy radical, an alkenyl group, a C₃₋₆ cycloalkyl group, a phenyl group substituted with a halogen atom or a divalent group of -OCH₂*CH(CH₃)-, -SCH₂*CH₂-or -SCH₂*CH(CH₃)- which forms an oxazine or thiazine ring together with the nitrogen atom to which R₁ is attached and with X wherein X is C-Y;
R₂ isa hydrogen atom, a carboxy protecting group or a pharmaceutically acceptable metal or organic cation;
R₃ and R₄,which may be the same or different, are a hydrogen atom, a lower alkyl group, an acyl group or a nitrogen protecting group metabolizable in vivo;
Z isa hydrogen or halogen atom, an amino, hydroxy or methyl group; and
n is1 to 3.
本发明涉及下式(I)所代表的本发明的某些新型喹诺酮化合物及其新型制备工艺。
其中
X 是氮原子或 C-Y 基团,其中 Y 是氢、氟、氯或溴原子或甲氧基或甲基;
R₁ 是任选被卤素原子或羟基取代的 C₁₋₆ 烷基、烯基、C₃₋₆ 环烷基、被卤素原子取代的苯基或 -OCH₂*CH(CH₃)- 的二价基团、-SCH₂*CH₂-或 -SCH₂*CH(CH₃)-,它们与 R₁ 所连接的氮原子和 X 一起形成噁嗪环或噻嗪环,其中 X 为 C-Y;
R₂ 是氢原子、羧基保护基团或药学上可接受的金属或有机阳离子;
R₃和 R₄(可以相同或不同)是氢原子、低级烷基、酰基或可在体内代谢的氮保护基团;
Z 是氢原子或卤素原子、氨基、羟基或甲基;以及
n 为 1 至 3。