A new diterpenoid from the leaves of .

A new diterpenoid, phyllane C (), along with three known compounds, ovoideal E (), spruceanol (), and fluacinoid B () were isolated from the leaves of growing in Thailand. The structures were determined by analysis of their MS and NMR data as well as by comparison with literature values. DFT-NMR chemical shift calculations and subsequent DP4/DP4+ probability methods were applied to define the relative configuration of .