Lasibidoupins A and B, two new compounds from the stems of V.S. Dang & Naiki.

From the stems, two new compounds, including one new 9,10-anthraquinone, lasibidoupin A (), and one new 6,7-benzocoumarin, lasibidoupin B (), together with one known compound, 11--methyldamnacanthol () were isolated using chromatographic method. Their structures were determined by extensive HRMS, and NMR assignments. Compound was reported for the first time from this species.