Resumo

ARCINIEGAS, Amira; PEREZ-CASTORENA, Ana L.; VILLASENOR, José Luis  e  ROMO DE VIVAR, Alfonso. Chemical Constituents of Senecio procumbens. J. Mex. Chem. Soc [online]. 2005, vol.49, n.3, pp.284-286. ISSN 1870-249X.

A chemical study of Senecio procumbens afforded the 12-membered macrocyclic diester pyrrolizidine alkaloids senecionine (1), senecivernine (2), retrorsine (3) and their N-oxides, together with 13²-hydroxyphaeophytin a (4), caffeic acid methyl ester (5), and cacticin (6). The identification of these compounds was accomplished by comparison of their spectral features with those reported in literature. The structures of compounds 1, and those of the N-oxides of 1 and 3 were confirmed by comparison with authentic samples. In addition, the ¹H and ¹³C NMR spectroscopies of 2 N-oxide are reported since they were not available in the literature.

Palavras-chave : Senecio procumbens; Asteraceae; Senecioneae; Pyrrolizidine alkaloids.

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