@article{Ha_Cuong_Tra_Anh_Cham_Son_2020, title={Chemical constituents from methanolic extract of Garcinia mackeaniana leaves and their antioxidant activity}, volume={58}, url={https://vjs.ac.vn/index.php/jst/article/view/14680}, DOI={10.15625/2525-2518/58/4/14680}, abstractNote={<p>A phytochemical investigation of the methanolic extract of <em>Garcinia mackeaniana</em> leaves led to the isolation, and determination of five secondary metabolites, including one benzophenone 4,3’,4’-trihydroxy-2,6-dimethoxybenzophenone (<strong>1</strong>), two flavone <em>C</em>-glucosides vitexin (<strong>2</strong>) and its 2’’-<em>O</em>-acetyl derivative (<strong>3</strong>), one biflavone amentoflavone (<strong>4</strong>), and one <em>mono</em>-phenol methyl protocatechuate (<strong>5)</strong>. The chemical structures of these compounds were characterized by the NMR-spectroscopic method. These isolated compounds were isolated from <em>G. mackeaniana</em> species for the first time. Benzophenone derivative <strong>1</strong> has shown to be associated with a significant IC<sub>50</sub> value of 14.97±0.8 µg/mL in the DPPH-antioxidant assay.</p>}, number={4}, journal={Vietnam Journal of Science and Technology}, author={Ha, Nguyen Thi Thu and Cuong, Pham Van and Tra, Nguyen Thanh and Anh, Le Thi Tu and Cham, Ba Thi and Son, Ninh The}, year={2020}, month={Jul.}, pages={411–418} }