Two New Cinnamyl Isovalerate Derivatives from Sabina gaussenii

Chemical investigation of the 90% acetone extract of the branches and leaves of Sabina gaussenii led to the isolation of two new cinnamyl isovalerate derivatives (1–2) and eighteen known compounds (3–20). Their structures were determined mainly by means of MS, 1D- and 2D-NMR data, and this is the first time these compounds have been reported from this plant. The biological activity test results indicated that the 90% acetone extract showed cytotoxicity against the human lung adenocarcinoma (A549) cell line (IC(50) = 0.98 ± 0.1 μg/mL), compound 6 showed cytotoxicities against human cervical carcinoma (HeLa) (IC(50) = 0.4 ± 0.1 μM ) and human gastric carcinoma (BGC-823) (IC(50) = 0.9 ± 0.2 μM) cancer cell lines, and compound 19 showed cytotoxicities against HeLa (IC(50) = 1.5 ± 0.4 μM), BGC-823 (IC(50) = 7.0 ± 0.8 μM ), and A549 (IC(50) = 10.6 ± 1.5 μM ) cancer cell lines.