5H-benzo(b)carbazole-3-carbonitrile, 9-Ethyl-6,11-dihydro-6,6-dimethyl-8-(4-(4-morpholinyl)-1-piperidinyl)-11-oxo-
9-ethyl-6,6-dimethyl-8-[4-(morpholin-4-yl)piperidin-1-yl]-11-oxo-6,11-dihydro-5H-benzo[b]carbazole-3-carbonitrile