摘要:
This invention relates to a N.sub.1 -(halogenocyclopropyl)-substituted pyridonecarboxylic acid derivative represented by the following formula (I): ##STR1## wherein X.sup.1 is a halogen atom or a hydrogen atom; X.sup.2 is a halogen atom; R.sup.1 is a hydrogen atom, a hydroxyl group, a thiol group, a halogenomethyl group, an amino group, an alkyl group or an alkoxy group which may have a substituent group; R.sup.2 is a group represented by the following formula (II): ##STR2## wherein R.sup.3 and R.sup.4 are independently a hydrogen atom or an alkyl group and n is an integer of 1 or 2; A is a nitrogen atom or a partial structure of the following formula (III): ##STR3## wherein X.sup.3 is a hydrogen atom, a halogen atom, a cyano group, an amino group, an alkyl group, a halogenomethyl group, an alkoxyl group or a halogenomethoxyl group which may have a substituent group; and R is a hydrogen atom, a phenyl group, an acetoxymethyl group, a pivaloyloxymethyl group, an ethoxycarbonyl group, a choline group, a dimethylaminoethyl group, a 5-indanyl group, a phthalidynyl group, a 5-alkyl-2-oxo-1,3-dioxol-4-ylmethyl group, a 3-acetoxy-2-oxobutyl group, an alkyl group, an alkoxymethyl group or a phenylalkyl group, and provides a heterocyclic compound useful as antibacterial drugs.
摘要:
The present invention provides an antibacterial compound useful as medicines, animal drugs, fisheries drugs or antibacterial preservatives and to an antibacterial agent or preparation which contains the same, more particularly a compound which possesses high safety and excellent activity against a broad range of bacterial species including quinolone-resistant strains. A quinolone derivative of the following formula (I) which has a group derived from the heterocyclic spiro-compound at the 7-positioned R2 and the halogenocyclopropyl group at the N1-position, prefereably a compound of pure isomer, and an antibacterial agent containing the derivative compound.
摘要:
A quinolone derivative represented by formula (I): wherein R1 represents a cycloalkyl group; R2 represents a hydrogen atom, an amino group, a hydroxyl group, a thiol group, a halogenomethyl group, an alkyl group, an alkenyl group, an alkynyl group, or an alkoxyl group; R3 represents an amino group, a halogenomethyl group, a halogenomethoxyl group, an alkyl group, an alkenyl group, an alkynyl group, or an alkoxyl group; R4 represents a hydrogen atom or an alkyl group having 1 to 6 carbon atoms; R5 represents a cycloalkyl group having 3 to 6 carbon atoms; the above R1 to R5 may be substituted; X represents a halogen atom or a hydrogen atom; and Y represents a hydrogen atom, a phenyl group, an acetoxymethyl group, a pivaloyloxymethyl group, an ethoxycarbonyl group, a choline group, a dimethylaminoethyl group, a 5-indanyl group, a phthalidinyl group, a 5-alkyl-2-oxo-1,3-dioxol-4-ylmethyl group, a 3-acetoxy-2-oxobutyl group, an alkyl group having 1 to 6 carbon atoms, an alkoxymethyl group having 2 to 7 carbon atoms, or a phenylalkyl group having 1 to 6 carbon atoms in the alkyl moiety thereof, or a salt thereof. The compound exhibits high and broad antimicrobial activity against various bacteria including bacteria resistant to drugs and high safety.
摘要:
An antimicrobial drug having excellent antimicrobial activity and high safety is disclosed, which comprises as an active ingredient, a quinolone derivative having a substituted aminocycloalkylpyrrolidine as a substituent and which is further substituted with various substituents, represented by formula (I), its salts and hydrates thereof: wherein Q is represented by formula (II) or (IV). Also disclosed is a quinolone derivative where R4 and the substituent on the pyrrolidine ring of the following formula: are located at the cis-configuration; and Q is represented by the formula:
摘要:
An antimicrobial drug having excellent antimicrobial activity and high safety is disclosed, which comprises as an active ingredient, a quinolone-derivative having a substituted aminocycloalkylpyrrolidine as a substituent and which is further substituted with various substituents, represented by formula (I), its salts and hydrates thereof: ##STR1## wherein Q is represented by formula (II) or (IV). ##STR2## Also disclosed is a quinolone derivative where R.sup.4 and the substituent on the pyrrolidine ring of the following formula: ##STR3## are located at the cis-configuration; and Q is represented by the formula: ##STR4##
摘要:
A quinolone antimicrobial agent having potent antimicrobial activity against gram positive and gram negative bacteria and having high safety is provided. A compound represented by the following formula (1): [Chemical formula 1] [wherein, R1: hydrogen, alkyl, cycloalkyl, or substituted carbonyl derived from amino acid, peptide or tripeptide; R2: hydrogen, alkyl, or cycloalkyl; R3: hydrogen, amino, halogen, or alkyl; R4: hydrogen, phenyl, acetoxymethyl, pivaloyloxymethyl, ethoxycarbonyl, choline, dimethylaminoethyl, 5-indanyl, phthalidinyl, 5-alkyl-2-oxo-1,3-dioxol-4-ylmethyl, 3-acetoxy-2-oxobutyl, alkyl, alkoxymethyl, or phenylalkyl; X, X1, X2: hydrogen or halogen] or salt thereof, or a hydrate thereof; and antimicrobial agent and therapeutic agent for infections, each containing the compound, salt thereof or a hydrate thereof.
摘要:
The present invention relates to a compound having a tricyclic amine substituent which may have various substituents, the compound being represented by formula (I), a salt or hydrate thereof, and a hydrate of the salt and a drug containing them as an active ingredient. They exhibit excellent antimicrobial activity against Gram negative bacteria and Gram positive bacteria with a satisfactory fate and safety and are useful in the treatment of infectious diseases. wherein Q preferably represents the following partial structure which may have various substituents:
摘要:
An antibacterial drug having potent antibacterial activities upon various bacteria including resistant strains and high safety is disclosed, which comprises as an active ingredient, quinolone derivatives represented by the following formula (I), its salts or hydrates thereof: wherein R1 represents a hydrogen atom or an alkyl group having 1 to 6 carbon atoms, R2 represents a halogenomethoxyl group or an alkoxyl group, R3 represents an alkyl group, an alkenyl group, a halogenoalkyl group, a cyclic alkyl group, a heteroaryl group, an alkoxyl group or an alkylamino group, and R4 represents a hydrogen atom, a phenyl group, an acetoxymethyl group, a pivaloyloxymethyl group, an ethoxycarbonyl group, a choline group, a dimethylaminoethyl group, a 5-indanyl group, a phthalidinyl group, a 5-alkyl-2-oxo-1,3-dioxol-4-ylmethyl group, 3-acetoxy-2-oxobutyl group, an alkyl group, an alkoxylmethyl group or a phenylalkyl group. These substituents may further have additional substituents.
摘要:
The present invention relates to a compound having a tricyclic amine substituent which may have various substituents, the compound being represented by formula (I), a salt or hydrate thereof, and a hydrate of the salt and a drug containing them as an active ingredient. They exhibit excellent antimicrobial activity against Gram negative bacteria and Gram positive bacteria with a satisfactory fate and safety and are useful in the treatment of infectious diseases. wherein Q preferably represents the following partial structure which may have various substituents:
摘要:
A compound represented by formula (I) or a salt thereof: ##STR1## wherein X.sup.1 and X.sup.2 each represent a halogen atom;R.sup.1 represents a hydrogen atom or a substituent;R.sup.2 represents a substituted or unsubstituted bicyclic heterocyclic substituent of the following formula; ##STR2## wherein R.sup.3, R.sup.4, Y, Z, m, n, p, q and r are as defined herein;A represents a nitrogen atom or a substituted carbon atom; andR represents a hydrogen atom or a substituent. The compound exhibits potent antimicrobial activity and also high safety due to reduced lipophilicity.