Two Dibenzylbutyrolactol Derivatives and Other Chemical Constituents from Aristolochia peltato-deltoidea

نویسندگان

  • Ana Paula Freitas da Silva
  • Lucia Maria Conserva
چکیده

Do extrato hexânico das partes aéreas de Aristolochia peltato-deltoidea Hoehne (Aristolochiaceae) foram isolados duas novas lignanas epiméricas do tipo dibenzilbutirolactol, rel-(8R, 8’S, 9S)-3,4-dimetoxi-3’,4’-metilenodioxi-9β-etoxie rel-(8R, 8’S, 9R)-3,4-dimetoxi-3’,4’-metilenodioxi-9α-etoxi-lignanas-8.8’,9.O.9’, além da neolignana benzofurânica eupomatenóide-7, α-tocoferilquinona, β-sitosterol e estigmasterol. Do extrato clorofórmico foram isoladas duas lignanas dibenzilbutirolactonas diasteroisoméricas: rel-(8R, 8’R)e rel-(8R, 8’S)-3,4-dimetoxi-3’,4’-metilenodioxi-9-oxo-lignanas-8.8’,9.O.9’. A composição química das frações apolares do extrato hexânico também foi analisada por CG/EM. Dentre os componentes detectados, dez foram identificados. As estruturas dos compostos isolados foram elucidadas utilizando-se métodos espectrométricos.

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تاریخ انتشار 1999