Abstract:
2-METHYL-3-CARBOXYLIC ACID-AMIDO-QUINOXALINE - 1,4-DIN-OXIDES OF THE FORMULA:
1,4-DI(O=),2-CH3,3-(R2-N(-R3)-OC-),R1-QUINOXALINE
WHEREIN: R1 IS HYDROGEN, LOWER ALKYL, LOWER ALKOXY OR CHLORINE, R2 IS HYDROGEN, STRAIGHT OR BRANCHED CHAIN ALKYL OR STRAIGHT OR BRANCHED CHAIN ALKYL SUBSTITUTED BY HYDROXY, LOWER ALKOXY, CARBALKOXY, MONOALKYLAMINO OR DIALKYLAMINO, AND R3 IS HYDROGEN, STRAIGHT OR BRANCHED CHAIN ALKYL, STRAIGHT OR BRANCHED CHAIN ALKYL SUBSTITUTED BY HYDROXY, LOWER ALKOXY, CARBALKOXY, MONOALKYLAMINO OR DIALKYLAMINO, OR WHEN R2 IS IS HYDROGEN, CYCLOHEXYL, OR R2 AND R3 TOGETHER WITH THE AMIDE NITROGEN ATOM FORM PART OF A 5OR 6-MEMBERED HETEROCYCLIC RING, ARE USEFUL FOR THEIR ANTIBACTERIAL EFFECT. THESE COMPOUNDS MAY BE PRODUCED, INTER ALIA, BY REACTING A BENZOFUROXAN OF THE FORMULA:
Abstract:
Pharmaceutical compositions comprising 2-methyl-3-carboxylic acid-amido-quinoxaline-1,4-di-N-oxides of the formula
wherein: R1 is hydrogen, lower alkyl, lower alkoxy or chlorine, R2 is hydrogen, straight or branched chain alkyl or straight or branched chain alkyl substituted by hydroxy, lower alkoxy, carbalkoxy, monoalkylamino or dialkylamino, and R3 is straight or branched chain alkyl, straight or branched chain alkyl substituted by hydroxy, lower alkoxy, carbalkoxy, monoalkylamino or dialkylamino, or when R2 is hydrogen, cyclohexyl, or R2 and R3 together with the amido nitrogen atom form part of a 5- or 6- membered heterocyclic ring, IN COMBINATION WITH A PHARMACEUTICALLY ACCEPTABLE INERT CARRIER ARE USEFUL FOR THEIR ANTIBACTERIAL EFFECT. These compositions or their active compounds can be administered subcutaneously or orally to humans or animals.
Abstract:
Imines of 2-formylquinoxaline-3-carboxylic acid-1,4-dioxides and their salts are obtained through treatment of the lactone or a salt of 2-dihydroxymethylquinoxaline-N,N-dioxide-3-carboxylic acid with a reactant bearing a free primary amino group. The resultant compounds and their non-toxic salts are antibacterial agents and can be incorporated in pharmaceutical compositions and feedstuffs for this use. A typical embodiment is 2(carbomethoxyhydrazonomethyl)-quinoxaline-3-carboxylic acid-1,4dioxide.
Abstract:
Imines of 2-formylquinoxaline-3-carboxylic acid-1,4-dioxides and their salts are obtained through treatment of the lactone or a salt of 2-dihydroxymethylquinoxaline-N,N-dioxide-3-carboxylic acid with a reactant bearing a free primary amino group. The resultant compounds and their non-toxic salts are antibacterial agents and can be incorporated in pharmaceutical compositions and feedstuffs for this use. A typical embodiment is 2(carbomethoxyhydrazonomethyl)-quinoxaline-3-carboxylic acid-1,4dioxide.
Abstract:
Imines of 2-formylquinoxaline-3-carboxylic acid-1,4-dioxides and their salts are obtained through treatment of the lactone or a salt of 2-dihydroxymethylquinoxaline-N,N-dioxide-3-carboxylic acid with a reactant bearing a free primary amino group. The resultant compounds and their non-toxic salts are antibacterial agents and can be incorporated in pharmaceutical compositions and feedstuffs for this use. A typical embodiment is 2(carbomethoxyhydrazonomethyl)-quinoxaline-3-carboxylic acid-1,4dioxide.
Abstract:
WHEREIN: R1 is hydrogen, lower alkyl, lower alkoxy or chlorine, R2 is hydrogen, straight or branched chain alkyl or straight or branched chain alkyl substituted by hydroxy, lower alkoxy, acyloxy, monoalkylamino or dialkylamino, R3 is hydrogen, straight or branched chain alkyl, straight or branched chain alkyl substituted by hydroxy, lower alkoxy, acyloxy, monoalkylamino or dialkylamino, or when R2 is hydrogen, cyclohexyl, or R2 and R3 together with the amide nitrogen atom form part of a 5- or 6-membered heterocyclic ring, and Hal is chlorine or bromine, in combination with a pharmaceutically acceptable inert carrier are useful for their antibacterial effect. These compositions or the active compounds can be administered subcutaneously or orally to animals and humans. 2-Isothiouronium-methyl-3-carboxylic acid-amidoquinoxaline-1,4di-N-oxide halides of the formula:
Abstract:
2-Amino-3-carbamido-quinoxaline-di-N-oxides of the formula
ARE PRODUCED BY HYDROLISING THE CORRESPONDING 2-AMINO-3-CYANOQUINOXALINE-DI-N-oxides of the formula
IN AN ACIDIC SOLUTION WHEREIN R is hydrogen, halogen, lower alkyl or lower alkoxy. The compounds are useful in treatment of infections from grampositive and gramnegative bacteria and are administered in the general range of 25 mg./kg. orally or parenterally.
Abstract:
Imines of 2-formylquinoxaline-3-carboxylic acid-1,4-dioxides and their salts are obtained through treatment of the lactone or a salt of 2-dihydroxymethylquinoxaline-N,N-dioxide-3-carboxylic acid with a reactant bearing a free primary amino group. The resultant compounds and their non-toxic salts are antibacterial agents and can be incorporated in pharmaceutical compositions and feedstuffs for this use. A typical embodiment is 2(carbomethoxyhydrazonomethyl)-quinoxaline-3-carboxylic acid-1,4dioxide.
Abstract:
2-Formyloximido-3-aminocarbonylquinoxaline-1,4-di-N-oxides are antimicrobial agents. The compounds, of which 2formylcarbomethoxyhydrazine-3-dimethylaminocarbonylquinoxaline1,4-di-N -oxide is a typical embodiment, are prepared from the reaction of the corresponding 2-bis(halogeno)methylquinoxaline derivative and hydroxylamine or an appropriate hydrazinocarbonic acid ester in the presence of a primary or secondary amine and water.