“…In France, Fontanel et al (1998a) isolated caffeic, chlorogenic, 3,5-O-dicaffeoylquinic, caftaric and chicoric acid (the major phenylpropanoic constituent in the species) from aerial parts of the plant, as well as the flavonoids, isoquercitrin, luteolin and luteolin-7-O-b-glucuronide. Although the high oil content detected in the Tennessee study was not confirmed by Fontanel et al (1998b), they extracted 2.01% oil, consisting of 43.2% nonsaponifiable matter, a 42.5% mix of nonsaponifiable matter and triterpene alcohols, and 18.4% triterpene alcohols; fatty acids consisting of myristic, palmitic, 10, 13-or 11, 14octadecadienoic, a-linolenic, stearic and arachidic acids; and triterpene alcohols consisting of three unidentified compounds and of taraxerol, b-amyrin, germanicol, aamyrin, lupeol, cycloartenol and c-taraxasterol. Five guaianolide glycosides were identified in extracts of the latex from young stems of L. communis: two previously known sesquiterpene lactone glycosides, crepiside E and tectoroside, and three new compounds, lapsanoside A, B, and C (Fontanel et al1999).…”