Secondary metabolites from Senecio burtonii (Compositae)

A cacalolide derivative named 4α-[2′-hydroxymethylacryloxy]-1β-hydroxy-14-(5-6)abeo eremophilan-12,8-olide and a shikimic acid derivative named (3′E)-(1α)-3-hydroxymethyl-4β, 5α-dimethoxycyclohex-2-enyloctadec-3′-enoate together with three known compounds were isolated from Senecio burtonii.