Diterpene

Diterpenes are a type of terpenes composed of four isoprene units. They derive from geranylgeranyl pyrophosphate. Diterpenes form the basis for biologically important compounds such as retinol, retinal, and phytol. They are known to be antimicrobial and antiinflammatory.

Examples of diterpenes

 * Abietic acid
 * Aphidicolin
 * Cafestol
 * Cembrene
 * Ferruginol
 * Forskolin
 * Guanacastepene A
 * Kahweol
 * Labdane
 * Lagochilin
 * Sclarene
 * Stemarene
 * Steviol
 * Taxadiene (precursor of taxol)
 * Tiamulin

Other

 * Dodonaea petiolaris yields the diterpene ent-3β-acetoxy- 15,16-epoxylabda-8(17),13(16),14-trien-18-oic acid (C22H28O6) or its enantiomer.
 * Spirostachys africana yields excoecarin in its latex, a compound with a purgative effect.
 * Salvia divinorum yields Salvinorin A, an hallucinogen