A new bisabolane sesquiterpenoid and a new abietane diterpenoid from Cephalotaxus sinensis

Phytochemical investigation of Cephalotaxus sinensis has led to the isolation of a new bisabolane sesquiterpenoid (1), a new abietane diterpenoid (2), and 13 known compounds (3-15). Their structures were elucidated by extensive spectroscopic analysis (MS, UV, IR, and NMR).