Syringaresinol is a lignan extracted from the sap of Lobelia longifolia with anti-inflammatory activity. syringaresinol causes vasodilation and enhances NO production through phosphorylation and dimerization of endothelial NO synthase.

Corypalmine is a kind of alkaloid from Coptis chinensis and purple chinensis, which has inhibitory effect on the germination of plant pathogenic spores and saprophytic fungi.

Mogroside IVa is a natural product from Siraitia grosvenorii Swingle.