Annotinine, C16H21O3N, reacted with phenyl lithium to yield diphenylannotinine, C28H33O3N, containing two hydroxyl functions. Oxidation of diphenylannotinine by the Oppenauer procedure yielded a monohydroxyketone, C28H31O3N, while oxidation with chromic acid yielded a dihydroxyketone, C28H31O4N. A mechanism for the formation of these compounds is discussed in relation to the chemistry of annotinine.