Minor coumarins from Calophyllum teysmannii var. inophylloide and synthesis of cytotoxic calanone derivatives

Article abstract of DOI:10.1002/hlca.19980810549

A chemotaxonomic survey for biologically active compounds from Malaysian Calophyllum species led to the finding of the four new benzoylcoumarins 1a, 2, 3, and 4a (including the unusual prenylated 6-benzoylcoumarin 1a, two uncommon coumarins 5 and 6a with