Abstract: 2-Ethyl 1H-imidazo[4,5-c]quinolin-4-amines, which are active as immunomodulators and antiviral agents, and intermediates in the preparation of such compounds, pharmaceutical compositions and pharmacological methods of use.

Abstract: A process and intermediates for preparing 1-substituted-1H-imidazo[4,5-c]quinolin-4-amines. The process involves reacting a 1-substituted-1H-imidazo[4,5-c]quinoline-5N-oxide with an isocyanate and hydrolysing the product thereof. Also, a process for preparing the intermediates is disclosed.

Abstract: Novel 1-substituted 1H-imidazo-[4,5-c]quinolin-4-amines are disclosed. These compounds function as antiviral agents, and they are potential synthetic intermediates in the preparation of known antiviral agents and labeled known antiviral agents. This invention also provides intermediates for preparing such compounds, pharmaceutical compositions containing such compounds, and pharmacological methods of using such compounds.

Abstract: Novel 1-substituted 1H-imidazo-[4,5-c]quinolin-4-amines are disclosed. These compounds function as antiviral agents, and they are potential synthetic intermediates in the preparation of known antiviral agents and labeled known antiviral agents. This invention also provides intermediates for preparing such compounds, pharmaceutical compositions containing such compounds, and pharmacological methods of using such compounds.

Abstract: 1H-imidazo[4,5-c]quinoline which are bronchodilators. Pharmacological methods of using the compounds as bronchodilators, pharmaceutical compositions containing the compounds, and synthetic intermediate for preparing the compounds are also described.

Abstract: 1H-Imidazo[4,5-c]quinolin-4-amines which are antivirals. Pharmacological methods of using such compounds and pharmaceutical compositions containing such compounds are also described.

Abstract: Antimicrobial compounds of the following formula are disclosed: ##STR1## wherein X is selected from the group consisting of --O--, --CH.sub.2 and ##STR2## m is 0 or 1; R.sub.1 is selected from the group consisting of hydrogen, nitro, amino, lower alkyl, lower alkanamido, lower N,N-dialkylamino, formamido, hydroxy, lower alkoxy, halogen, lower haloalkanamido and pyrryl; n is 1 or 2; and R.sub.2 is selected from the group consisting of hydrogen, methyl, fluoro, chloro and nitro. Acyl chlorides, esters, alkylaminoalkyl ester salts, amides and pharmaceutically acceptable carboxylate salts are also disclosed. Pharmaceutical compositions containing these compounds, methods of using these compound and synthetic intermediates are also disclosed.

Abstract: 5-isothiocyanato-2-methylquinolines, N-(2,2-dialkoxyethyl)-N'-(2-methylquinolin-5-yl)thioureas, 5-(2-mercaptoimidazol-1-yl)-2-methylquinolines, 5-(imidazol-1-yl)-2-methylquinolines, 5-(imidazol-1-yl)-1,2,3,4-tetrahydro-2-methylquinolines and dialkoxy 2-[N-(5-(imidazol-1-yl)-1,2,3,4-tetrahydro-2-methylquinolinyl)]methylenema lonates are described as intermediates for antimicrobial 6,7-dihydro-8-(imidazol-1-yl)-5-methyl-1-oxo-1H,5H-benzo[ij]quinolizine-2- carboxylic acids.

Abstract: Antimicrobial compounds having the heterocyclic nucleus pyrido[1,2,3-de]quinoxaline are disclosed. The process of making the compounds and novel intermediates are also disclosed.

Abstract: Certain 6,7-dihydro-8-(imidazol-1-yl)-1-oxo-1H,5H-benzo[ij]quinolizine-2-carboxyli c acids are disclosed as potent antimicrobial agents with an unusual spectrum of activity. Esters, acyl chlorides, alkylaminoalkyl ester salts, salts of a nitrogen atom of the imidazole ring, and pharmaceutically acceptable carboxylate salts are also disclosed. Novel synthetic intermediates are also described.

Abstract: 1,2-dihydron-7-oxo-3H,5H-naphtho[1,2,3-ij]quinolizine-6-carboxylic acids are disclosed as active antimicrobial agents as are pharmaceutically acceptable esters, amides, acyl halides and salt derivatives thereof. Intermediates and synthetic processes are also disclosed.

Abstract: Antimicrobial compounds of the following formula are disclosed: ##STR1## wherein X is selected from the group consisting of --O--, --CH.sub.2 and ##STR2## m is 0 or 1; R.sub.1 is selected from the group consisting of hydrogen, nitro, amino, lower alkyl, lower alkanamido, lower N,N-dialkylamino, formamido, hydroxy, lower alkoxy, halogen, lower haloalkanamido and pyrryl; n is 1 or 2; and R.sub.2 is selected from the group consisting of hydrogen, methyl, fluoro, chloro and nitro. Acyl chlorides, esters, alkylaminoalkyl ester salts, amides and pharmaceutically acceptable carboxylate salts are also disclosed. Pharmaceutical compositions containing these compounds, methods of using these compound and synthetic intermediates are also disclosed.

Abstract: Antimicrobial compounds having the heterocyclic nucleus pyrido[1,2,3-de]quinoxaline are disclosed. The process of making the compounds and novel intermediates are also disclosed.

Abstract: Certain substituted 6,7-dihydro-7-hydroxy-1-oxo-1H,5H-benzo[ij]quinolizine-2-carboxylic acids and salt and ester derivatives thereof are described. These compounds are useful antibacterial agents. SPThis is a division of application Ser. No. 567,510, filed Apr. 14, 1975, now U.S. Pat. No. 3,985,753.

Abstract: Certain substituted 6,7-dihydro-1-oxo-1H,5H-benzo[ij]-quinolizine-2-carboxylic acids and hydrazides, esters, amides and salts thereof, intermediates therefor, and a process for their preparation are described; the compounds are active as anti-microbial agents.

Abstract: Certain substituted 6,7-dihydro-1-oxo-1H,5H-benzo[ij]-quinolizine-2-carboxylic acids and hydrazides, esters, amides and salts thereof, intermediates therefor, and a process for their preparation are described; the compounds are active as anti-microbial agents.

Abstract: Certain substituted 6,7-dihydro-7-hydroxy-1-oxo-1H,5H-benzo[ij]quinolizine-2-carboxylic acids and salt and ester derivatives thereof are described. These compounds are useful antibacterial agents.

Abstract: Certain substituted 6,7-dihydro-1-oxo-1H,5H-benzo[ij]-quinolizine-2-carboxylic acids and hydrazides, esters, amides and salts thereof, intermediates therefor, and a process for their preparation are described; the compounds are active as anti-microbial agents.

Abstract: Anti-microbial agents which are 2,3-dihydro-3-substituted-7-oxo-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxy lic acids are prepared by condensation of benzoxazines with ethoxymethylene malonate esters followed by ring closure with poly phosphoric acid and hydrolysis of the resulting esters.

Abstract: Intermediates for and a process for preparing certain substituted 6,7-dihydro-7-hydroxy-1-oxo-1H,5H-benzo[ij]quinolizine carboxylic acids is described. The end products are useful antibacterial agents.