Naphthohydroquinones, naphthoquinones, anthraquinones, and a naphthohydroquinone dimer isolated from the aerial parts of Morinda parvifolia and their cytotoxic effects through up-regulation of p53

A phytochemical investigation of the aerial parts of Morinda parvifolia led to the isolation of five hitherto unknown (1-5) and three known (6-8) quinones with cytotoxic effects mediated by up-regulation of p53.