(+)-Ledene

(+)-Ledene, also called leden or viridiflorene, is an organic compound that belongs to the group of 5, 10-cycloaromadendrane sesquiterpenoids. These compounds are derived from the aromadendrane skeleton through a cyclization reaction between carbon atoms 5 and 10. (+)-Ledene is mainly found in saliva and is considered to have low solubility in water and a relatively neutral nature. In cellular environments, (+)-ledene is predominantly present in the cell membrane (predicted based on logP) and cytoplasm.

(+)-Ledene is an essential oil that is synthesized by viridiflorene synthase. It has been studied as an antioxidant, antimicrobial, antibiofilm and to treat various cancers.

ChEBI: Viridiflorene is a carbotricyclic sesquiterpene obtained from several natural sources, including Australian Tea Tree oil (Melaleuca alternifolia.) It is a sesquiterpene and a carbotricyclic compound.

(+)-Ledene is a naturally occurring sesquiterpene that can be prepared from (+)-aromadendrene via isomerization.

[1] DUC N. TRAN   Prof.??Dr. N C. Biomimetic Synthesis of (+)-Ledene, (+)-Viridiflorol, (?)-Palustrol, (+)-Spathulenol, and Psiguadial A, C, and D via the Platform Terpene (+)-Bicyclogermacrene[J]. Chemistry - A European Journal, 2014. DOI:10.1002/chem.201403082.
[2] S. L. GWALTNEY   K. J S  S T Sakata. Bridged to Fused Ring Interchange. Methodology for the Construction of Fused Cycloheptanes and Cyclooctanes. Total Syntheses of Ledol, Ledene, and Compressanolide[J]. The Journal of Organic Chemistry, 1996. DOI:10.1021/jo961005a.