8-Chloro-6-methoxy-11H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-one

Ethyl 4-[8-Chloro-6-[(ethoxycarbonyl)oxy]-11H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-ylidene]-1-piperidinecarboxylate

8-Chloro-6,11-dihydro-11-(1-methyl-4-piperidinyl)-5,11-epoxy-5H-benzo[5,6]cyclohepta[1,2-b]pyridin-5-ol

8-Chloro-5,11-dihydro-11-(4-piperidinylidene)-6H-benzo(5,6)cyclohepta(1,2-b)pyridin-6-one