Przewalskinic acid A is a rare, water-soluble, and highly biologically active ingredient found, thus far, only in the Salvia przewalskii Maxim herb.

1-Cinnamoylpyrrolidine, a natural product prepared from Piper caninum, can be used as a DNA strand breaking agent, inducing the relaxation of the plasmid pBR322 DNA superhelix in the presence of Cu2+. 1-Cinnamoylpyrrolidine inhibits PAF-induced platelet aggregation with an IC50 value of 37.3 μM. value was 37.3 μM.

2'-Hydroxylagarotetrol 是一种苯醚色酮衍生物。