Synthesis of some novel fused tetracyclic quinolonecarboxylic acids via 7- methyl-6,7,8,9-tetrahydro-3H-imidazo[4,5-f]quinoline and 6-methyl-5,6,7,8- tetrahydro-1H-imidazo[4,5-g]quinoline

Article abstract of DOI:10.1002/jhet.5570310126

A series of fused tetracyclic quinolonecarboxylic acids was prepared for biological evaluation. These compounds were synthesized by a route involving a regiospecific functionalization of 5-fluoro-2-methyl-1,2,3,4- tetrahydroquinoline to obtain a series of