(+)- and (−)-ganodilactone, a pair of meroterpenoid dimers with pancreatic lipase inhibitory activities from the macromycete Ganoderma leucocontextum

(+)- and (−)-ganodilactone (1), a pair of novel meroterpenoid dimers possessing a unique 5′H-spiro[chroman-4,2′-furan]-2,5′-dione ring system were discovered from the fruiting bodies of Ganoderma leucocontextum.