Daurichromenic acid is a chromene, which can be isolated from the leaves and twigs of Rhododendron dauricum. Daurichromenic acid has potent anti-HIV activity with an EC50 value of 0.00567 μg/mL.

Quercetin-3-O-[(6-caffeoyl)-β-glucopyranosyl (1→3) α-rhamnopyranoside]-7-O-α-rhamnopyranoside can be isolated from the aerial parts of the fern Ophioglossum vulgatum L and has wound healing activity.

CGP 20376 is a benzothiazole compound, an anthelmintic, with dual dose-dependent modulation of in vitro effects on the respiratory burst of eosinophils and antifibrillatory properties.