From an extract of fruits of Clusia multiflora, a new prenylated benzo
phenone and two pairs of regioisomeric cytriylidene derivatives of 2,4
,6-trihydroxybenzophenone were isolated. The structures have been esta
blished by high field 2D NMR techniques. Nemorosonol A, a known polyis
oprenylated-modified benzophenone, was also found in the same extract.