Chemical constituents of Euphorbia fischeriana

To investigate the chemical constituents in the roots of Euphorbia fischeriana. The chemical constituents were isolated and purified by various chromatographic techniques. Their structures were identified on the basis of spectroscopic analyses and physiochemical properties. Eleven compounds were isolated and elucidated as (+)-nyasol (1), 23(Z)-cycloart-23-en-3β, 25-diol (2), cycloart-22-ene-3β, 25-diol (3), ebracteolatain A (4), 2, 4-dihydroxy-6-methoxy-3-formyl-1-acetophenone (5), α-linolenic acid (6), 24-methylenecycloartanol (7), cycloartenol (8), β-sitosterol (9), 3, 3′-diacetyl-4, 4′-dimethoxy-2, 2′, 6, 6′-tetrahydroxy diphenylmethane (10), 2, 4-dihydroxy-6-methoxy-3-methyl-1-acetophenone (11). Compound 1 was found in the genus Euphorbia for the first time and compounds 2-6 were firstly isolated from Euphorbia fischeriana.