摘要：A new dolabrane dinorditerpene, tagalsine X(1), was isolated from the leaves of Ceriops tagal, along with five known analogues (2-6). Their structures were established on the basis of spectroscopic data or comparison with the literatural data. Their cytotoxic activities against four human carcinoma cell lines (CNE-2, HCT-116, HepG2and A549) were also evaluated, which displayed that only compound 2 had significant cytotoxicity against those cell lines with IC50 values of 13.57, 42.32, 11.21 and 15.23 μM, respectively.
