Two new sesquiterpene glycosides isolated from the fresh needles of <i>Pinus massoniana</i> Lamb.

<p>Two new sesquiterpene glycosides, namely massonside A (<b>1</b>) and massonside B (<b>2</b>), were isolated from the n-Bu extract of the fresh needles of <i>Pinus massoniana</i> Lamb. Their structures were established by 1D, 2D nuclear magnetic resonance and high-resolution mass spectrometry. Their biological activities were profiled by the anti-HBV and anti-HCV assays.</p>