Furanoeremophilanes and a bakkenolide from Senecio auricula var. major
1998; Elsevier BV; Volume: 47; Issue: 1 Linguagem: Inglês
10.1016/s0031-9422(97)00497-4
ISSN1873-3700
AutoresPascual Torres, Juan H. Ayala, Concepción Grande, Maria J. Macías, M. Grandé,
Tópico(s)Sesquiterpenes and Asteraceae Studies
ResumoThe roots of Senecio auricula var. major yielded, in addition to known compounds, four new eremophilane derivatives: the furanoeremophilanes 6β-(2-methylbutyryloxy)-10αH-furanoeremophilan-1-one, 6β-isobutyryloxysenberginone, 6β-(2-methylbutyryloxy)-senberginone and the bakkenolide 11β,12β-epoxy-6β-(2-methylbutyryloxy)-Δ1(10)-7-epidihydrobakkenolide A (senauricolide). Alkaline hydrolysis of senberginone esters gave, apart from the expected alcohols, the isomeric new 1β-hydroxy-10βH-furanoremophilan-6-one. The aerial parts contained α-tocopherol, fatty esters of β-amyrin, fatty esters of 20(29)-lupene-3β,16β-diol and sitosterol.
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