Synthesis and Antibacterial Activity of Novel 7-Substituted 6-Fluoro-1-methylene-4-oxo-4H-[1,3]thiazeto[3,2-a]quinoline-3-carboxylic Acid Derivatives
摘要:
A series of 7-substituted 6-fluoro-1-methylene-4-oxo-4H-[1,3]thiazeto[3,2-a]quinoline-3-carboxylic acid derivatives (2) and (3) was prepared and evaluated for antibacterial activity. These compounds were obtained by the treatment of the 1-methanesulfonyloxymethyl or 1-fluoromethyl thiazetoquinolone-3-carboxylates (12, 14 and 20) with potassium hydroxide. Compounds (2) and (3) showed excellent in vitro antibacterial activity against both gram-negative and gram-positive bacteria including quinolone and Methicillin-resistant Staphylococcus aureus.
Synthesis and Antibacterial Activity of Novel 7-Substituted 6-Fluoro-1-methylene-4-oxo-4H-[1,3]thiazeto[3,2-a]quinoline-3-carboxylic Acid Derivatives
摘要:
A series of 7-substituted 6-fluoro-1-methylene-4-oxo-4H-[1,3]thiazeto[3,2-a]quinoline-3-carboxylic acid derivatives (2) and (3) was prepared and evaluated for antibacterial activity. These compounds were obtained by the treatment of the 1-methanesulfonyloxymethyl or 1-fluoromethyl thiazetoquinolone-3-carboxylates (12, 14 and 20) with potassium hydroxide. Compounds (2) and (3) showed excellent in vitro antibacterial activity against both gram-negative and gram-positive bacteria including quinolone and Methicillin-resistant Staphylococcus aureus.
QUINOLINECARBOXYLIC ACID DERIVATIVE AND PROCESS FOR PRODUCING THE SAME
申请人:NIPPON SHINYAKU COMPANY, LIMITED
公开号:EP0675127A1
公开(公告)日:1995-10-04
A quinolinecarboxylic acid derivative represented by general formula (I) and a pharmaceutically acceptable salt thereof, wherein z represents (un)substituted cyclic amino or phenyl; A represents > C=CH₂ or > CHR¹, R¹ representing flouroalkyl; R² represents hydrogen, alkyl, alkoxy, amino or halogen; and R³ represents hydrogen or alkyl. The invention compound is useful for treating various infectious diseases, in particular, those caused by Gram-positive bacteria including methicillin resistant Staphylococcus aureus and new quinolone and methicillin resistant resistant Staphylococcus aureus.
A series of 7-substituted 6-fluoro-1-methylene-4-oxo-4H-[1,3]thiazeto[3,2-a]quinoline-3-carboxylic acid derivatives (2) and (3) was prepared and evaluated for antibacterial activity. These compounds were obtained by the treatment of the 1-methanesulfonyloxymethyl or 1-fluoromethyl thiazetoquinolone-3-carboxylates (12, 14 and 20) with potassium hydroxide. Compounds (2) and (3) showed excellent in vitro antibacterial activity against both gram-negative and gram-positive bacteria including quinolone and Methicillin-resistant Staphylococcus aureus.