On the structures of plukenetiones B, D, and E and their relationships to other polycyclic polyprenylated acylphloroglucinols

Three polycyclic polyprenylated benzoylphloroglucinol natural products, plukenetiones B, D, and E, are shown to be diastereomeric to the related compounds, nemorosone II and sampsonione G. (C) 2000 Elsevier Science Ltd. All rights reserved.