Diterpenes from Erythroxylum barbatum
نویسندگان
چکیده
Das raízes de Erythroxylum barbatum foram isolados dois novos diterpenos entrosan-1ona-5α,15ξ,16-triol (1) e ent-11α-acetoxi-devadarano-15ξ,16-diol (2), além do ent-devadarano15ξ,16-diol (erythroxidiol X, 3) e do procesterol. Investigação do lenho do caule forneceu o ent-devadarano-11α,15ξ,16-triol (erythroxitriol Q, 4), o ent-devadarano-7β,15ξ,16-triol (hidroxidevadarool, 5), o β-sitosterol e seu glicosídeo. A caracterização estrutural, inclusive a estereoquímica relativa dos compostos, foi estabelecida com base em métodos espectroscópicos, particularmente RMN uni e bidimensional, e comparação com dados da literatura.
منابع مشابه
New bitter-tasting hemiterpene glycosides from the Japanese fern Hymenophyllum barbatum.
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