TABLE 1

Structural alerts for constituents in select natural products

Reprinted with permission from the American Society for Pharmacology and Experimental Therapeutics from Johnson et al. (2018).

Constituent(s)/Natural ProductStructural AlertAlert Substructure
Flavonoids, phenylpropanoids/Echinacea glycyrrhizin, glycyrrhizinic acid/licoriceCatecholsEmbedded Image
Isoquinoline alkaloids/goldenseal terpenoids/cinnamon curcuminoids/turmericMasked catecholEmbedded Image, Embedded Image
Isoquinoline alkaloids/goldenseal shizandrins/Schisandra spp. Gomisins/Schisandra spp.MethylenedioxyphenylEmbedded Image
Cycloartenol/black cohoshSubterminal olefinEmbedded Image
Polyacetylenes/EchinaceaTerminal and subterminal acetylenesEmbedded Image, Embedded Image
Terpenoids/cinnamon diallyl disulfides and trisulfides/garlicTerminal olefinEmbedded Image
Cinnamaldehyde/cinnamonα,β-Unsaturated aldehydeEmbedded Image
Curcuminoids/turmericα,β-Unsaturated ketoneEmbedded Image