A tirucallane and two pairs of tetranortriterpene 23-epimers from the Thai mangrove <i>Xylocarpus moluccensis</i>

2015-10-25T00:00:00Z (GMT) by Kai Niu Li Shen Jun Wu
<p>A new tirucallane, 3β-hydroxy-3-decarbonyl-24-<i>epi</i>-piscidinol A (<b>1</b>), and two new pairs of tetranortriterpene 23-epimers, named thaimoluccepimers A (<b>2</b>) and B (<b>3</b>), were isolated from the seeds of a Thai mangrove, <i>Xylocarpus moluccensis</i>. The structures of these compounds were elucidated by HRESIMS and NMR spectroscopic analysis.</p>