Wikstromol is the enantiomer of nortrachelogenin, isolated from Trachelospermum asiaticum var. intermedium and Pinus palustris. Wikstromol exhibited acetylcholinesterase (AChE) inhibitory. It has been found to be active against P-388 lymphocytic leukemia growth implanted in mice. The reason for this is at present unclear, although it is possible that wikstromol is either metabolized to an active antileukemic agent by the host or else serves as a biological response modifier.