Isopimarane diterpene glycosides, isolated from endophytic fungus Paraconiothyrium sp. MY-42

► Isopimarane diterpenes were isolated from endophytic fungus Pleosporales sp. ► The structures of diterpenes were determined by NMR and MS studies. ► All compounds were evaluated for cytotoxicity. ► Compounds 2 and 3 showed moderate cytotoxicities against HL60 cells.