Four lanostane-type triterpenes from the fruiting bodies of mushroom <i>Laetiporus sulphureus</i> var. miniatus

<div><p>Two new 3,4-<i>seco</i>-lanostane-type triterpenes, named as 15α-hydroxy-3,4-<i>seco</i>-lanosta-4(28),8,24-triene-3,21-dioic acid (<b>1</b>), 5α-hydroxy-3,4-<i>seco</i>-lanosta-4(28),8,24-triene-3,21-dioic acid 3-methyl ester (<b>2</b>), and one new lanostane triterpene 15α-acetoxylhydroxytrametenolic acid (<b>3</b>) together with a known one versisponic acid D (<b>4</b>) were isolated from the fruiting bodies of <i>Laetiporus sulphureus</i> var. <i>miniatus</i>. Their structures were determined on the basis of extensive spectroscopic methods and comparison with reported data. All four compounds were evaluated for their cytotoxicities against five human cancer cell lines; however, none exhibited inhibitory effects.</p></div>