3,5-Dimethoxy-2,7-phenanthrenediol (compound 2) 是一种菲类化合物，可从黄牛奶树根 (Combretum laxum) 中分离得到。3,5-Dimethoxy-2,7-phenanthrenediol 对人癌细胞系 786-0，MCF-7 和 NCI/ADR-RES 具有细胞毒性，IC50s 分别为 73.26 μM，118.40 μM，83.99 μM。3,5-Dimethoxy-2,7-phenanthrenediol 还具有自由基清除活性，IC50 为 20.4 μM。

Selective antagonist of formyl peptide receptor 2 (FPR2) signaling. Inhibits WKYMVm binding to FPR2 (IC50 = 0.23 μM) and inhibits intracellular calcium release induced by WKYMVm, MMK 1, amyloid β42, and F peptide. Also inhibits FPR2-mediated signaling in human neutrophils; blocks chemotactic migration and superoxide generation by amyloid β42 peptide.

Chloranthalactone E is a natural product from Chloranthus serratus.