8,9-Epoxy-3-isobutyryloxy-10-(2-methylbutanoyl)thymol is a chemical composition of essential oils from Telekia speciosa. It also shows marked antipro-liferative activity against human cancer cell lines in vitro.
1-(3',5'-dimethoxy)phenyl-2-[4''-O-β-D-glucopyranosyl (6→1)-O-α-L-rhamnopyranosyl]phenylethane showed cytotoxic activities to Hela and hep2 cell lines.