Two new biphenyls from the stems of <i>Garcinia tetralata</i>

<p>Two new biphenyls (<b>1</b> and <b>2</b>) and three known xanthones (<b>3</b>–<b>5</b>) were isolated from the ethanol extract of the stems of <i>Garcinia tetralata</i>. Structural elucidations of <b>1</b>–<b>2</b> were elucidated by spectroscopic methods including extensive 1D- and 2D-nuclear magnetic resonance spectroscopy techniques. Compounds <b>1</b>–<b>2</b> showed anti-rotavirus activities with SI above 10.</p>