2,3-Pentamethylenequinoline-4-carboxylic acid butylamide 36063-52-2 5-22-03-00358 (Beilstein Handbook Reference) 6H-Cyclohepta(b)quinoline-11-carboxamide, 7,8,9,10-tetrahydro-N-butyl- BRN 0415123 N-Butyl-7,8,9,10-tetrahydro-6H-cyclohepta(b)quinoline-11-carboxamide