A new acorane sesquiterpene from Lysionotus pauciflorus

AIM:To study the chemical constituents of the whole plant of Lysionotus pauciflorus.METHODS:Chromatographic separations on silica gel,Toyopearl HW-40F gel,and MCI gel were used to isolate the compounds.The structures were elucidated on the basis of spectral data.RESULTS:Three compounds were obtained and their structures were identified as 3,10-dihydroxyacoronene(1),bis(2-butylhexyl) phthalate(2) and 3,5-dimethoxy-4-hydroxy-trans-stilbene(3).CONCLUSION:Compound 1 is a new acorane sesquiterpene,this is the first report of acorane sesquiterpenes from the Lysionotus genus.