ceratamine B
ceratamine b
An organic heterobicyclic compound, which is imidazo[4,5-<em>d</em>]azepin-5(6<em>H</em>)-one substituted by a 3,5-dibromo-4-methoxybenzyl group at position 4 and a methylamino group at position 2. It is an antimitotic alkaloid isolated from the marine sponge <em>Pseudoceratina</em>.