SEARCH Articles Figures Tables 4 -Benzo quinolizines 4 -Benzo quinolizines 6.7- Dihydro-4// -benzo quinolizines Benzo quinolizin-4-ones Benzo quinolizine derivatives Benzo quinolizine, 1,2,3,5,6,7HEXAHYDRO Benzo quinolizines 1.2.3.4.6.7- hexahydro Quinolizine Quinolizines