Phillyrin, (+)-Phillygenin, and (-)-phillygenin exert the strongest inhibitory activities on NO production with IC(5) values.

Regaloside K (Compd 1) is a natural compound that can be isolated from Easter Lily (Lilium longiflorum Thunb.).

Oroxylin A possesses abilities of inhibiting the ATRA-induced IL-6 production via modulation of LAP/LIP/CHOP in leukemia cell lines, which could providing a therapeutic strategy for RAS.