title: Antiallergic activity of tetracyclic derivatives of quinoline-2-carboxylic acid. 2. Some benzothienoquinolinecarboxylic acids.
abstract: Some benzothienoquinolinecarboxylic acids were synthesized and tested in the rat passive cutaneous anaphylaxis (PCA) assay as potential antiallergic agents. Many of the compounds showed activity comparable to that shown by disodium cromoglycate (DSFG); two of them, 1,4-dihydro-4,6,6-trioxo-5-chloro[1]benzothieno[2,3-g]quinoline-2-carboxylic acid and 1,4-dihydro-1,7-dioxo[1]benzothieno[3,2-f]quinoline-3-carboxylic acid, showed potency approximately eightfold greater than that of DSCG in the PCA assay.
mesh_terms: D000818:Animals; D002264:Carboxylic Acids / Q000138:chemical synthesis / Q000494:pharmacology; D004205:Cromolyn Sodium / Q000494:pharmacology; D010323:Passive Cutaneous Anaphylaxis / Q000187:drug effects*; D011804:Quinolines / Q000138:chemical synthesis* / Q000494:pharmacology; D051381:Rats; D013329:Structure-Activity Relationship
chemical_list: D002264:Carboxylic Acids; D011804:Quinolines; D004205:Cromolyn Sodium