Essential oils of Baccharis salicifolia, B. latifolia and B. dracunculifolia

摘要: Abstract Samples of the essential oil from Baccharis salicifolia, four samples B. latifolia, and one sample dracunculifolia collected in high valleys Bolivia province Cochabamba were analysed by a combination gas chromatography mass spectrometry. The identified products may be divided into different groups: monoterpenes, oxygenated sesquiterpenes, various sesquiterpenes such as germacrone ledol. latter compounds are characteristic constituents oils Ledum groenlanicum. Rather unusual monooxygenated with cadinane structure also detected, including verboccidentafuran, chromoleanin related compounds.