Miscellaneous terpenoid constituents of Abies nephrolepis and their moderate cytotoxic activities

► Isolation of three monoterpenoids and two triterpenoids. ► Structure elucidation achieved mainly by analysis of NMR spectroscopic data. ► The absolute configuration of 1 was established by Cu-Kα X-ray crystallography. ► α-Cadinol exhibited the best inhibitory effects on three tumor cells.