@article{Kim Thoa_Ban_Trang_Linh_Giang_Nhiem_Kiem_2017, title={Triterpenes from Vitex limonifolia.}, volume={55}, url={https://vjst.net/index.php/vjchem/article/view/2525-2321.2017-00531}, DOI={10.15625/2525-2321.2017-00531}, abstractNote={<p>Using combined chromatographic methods, four triterpenoids, 2<em>α</em>,3<em>α</em>-dihydroxyurs-12-en-28-oic acid (<strong>1</strong>), euscaphic acid (<strong>2</strong>), 2<em>α</em>,3<em>α</em>-dihydroxy-19-oxo-18,19-<em>seco-</em>urs-11,13(18)-dien-28-oic acid (<strong>3</strong>), and maslinic acid (<strong>4</strong>) were isolated from the methanol extract of the leaves of <em>Vitex limonifolia. </em>Their<em> </em>structures were elucidated by 1D-, 2D-NMR spectra as well as by comparison with those reported in the literature. Compound <strong>3</strong> was reported from <em>Vitex</em> genus for the first time.</p> <p><strong>Keywords.</strong> <em>Vitex limonifolia, </em>triterpenoid, ursane, oleanane.</p>}, number={6}, journal={Vietnam Journal of Chemistry}, author={Kim Thoa, Nguyen Thi and Ban, Ninh Khac and Trang, Do Thi and Linh, Tran My and Giang, Vu Huong and Nhiem, Nguyen Xuan and Kiem, Phan Van}, year={2017}, month={Dec.}, pages={715} }