Racemic meroterpenoids from Ganoderma cochlear

Ganoderma cochlear, as edible and medicinal fungus, has long been used to prevent and treat various diseases. As our continuously phytochemical investigation of this fungus, a HPLC-UV-guided method led to the isolation of nine previously undescribed aromatic meroterpenoids with different ring systems, including six pairs of racemates, (±)-cochlearins A–E, G (1–5, 7), and three new analogues, cochlearins F, H and I (6, 8, 9). Their structures...