The seeds of Calophyllum cerasiferum Vesque (Family Clusiaceae), and Caloph
yllum inophyllum Linn. (Family - Clusiaceae) contain several known coumarin
s, among which were the potent HIV reverse transcriptase inhibitors costato
lide and inophyllum P. Calophyllum cerasiferum contained (-)-calanolide B a
s its major coumarin constituent in significant amount and thus constitute
a renewable source of this compound. (C) 1998 Elsevier Science Ltd. All rig
hts reserved.