Phenolic derivatives and an antifungal and cytototoxic labdane diterpenoid from the root bark of Turraeanthus mannii

► Two new compounds have been isolated from the root bark of Turraeanthus mannii (Meliaceae). ► (3R,4R,3′R,4′R)-6,6′-Dimethoxy-3,4,3′,4′-tetrahydro-2H,2′H-[3,3′]bichromenyl-4,4′-diol and 15-acetoxy-labda-8(17),12E,14Z-trien-16-al. ► 15-Acetoxy-labda-8(17),12E,14Z-trien-16-al exhibited antifungal and cytotoxic activities against Mucor miehei and Artemia salina, respectively.