Abstract
Three new inositol derivatives (1–3) were isolated from the leaves of Chisocheton paniculatus collected in Vietnam, along with four known compounds, including a limonoid (4), two triterpenoids (5–6), and a tocopherol (7). The structures of the new compounds were elucidated by 1D- and 2D-NMR and HRESIMS analyses. Compound 4 showed the highest cytotoxicities against the human lung cancer A549 and cervical cancer HeLa cell lines, with IC50 values of 7.3 and 8.8 µM, respectively, among the isolated compounds. Compounds 5 and 7 displayed moderate to weak cytotoxicities against the A549, HeLa, and human stomach cancer GSU cell lines, with IC50 values ranging from 17.7 to 68.0 µM.
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