1,1′-Disinomenine is an alkaloid that can be isolated from the stems of Sinomenium acutum. 1,1′-Disinomenine shows weak inhibition against A549 and Hela cells.

FR901464 (WB 2663B) is potent cytotoxic natural products that share an amine-containing tetrahydropyran ring.

2-Hydroxystearic acid is a hydroxy fatty acid found in humans and U. armoricana. It reduces the growth of Ehrlich ascites tumor (EAT) cells in vitro when used at a concentration of 100 μM.