A 3,4-seco-8βH-fernadienoic acid and other constituents from Euphorbia chamaesyce

Abstract A new seco -triterpene-dienoic acid was isolated, together with three known triterpenes, glutinol, 3β-hydroxymultiflor-8-en-7-one and cycloart-23 Z -en-3 β , 25-diol, from the whole herb of Euphorbia chamaesyce , and the structure was established as 3,4- seco -8 βH -ferna-4(23),9(11)-dien-3-oic acid on the basis of chemical and spectral evidence.