%0 Journal Article
%T SAPONINS FROM CARINIANA RUBRA (LECYTHIDACEAE)
%A LIMA
%A EVANGELISTA
%A TEIXEIRA DE SOUSA FILHO
%A PAULO
%A BASTIDA
%A JAIME
%A SCHMEDA-HIRSCHMANN
%A GUILLERMO
%J Bolet¨ªn de la Sociedad Chilena de Qu¨ªmica
%D 2002
%I Scientific Electronic Library Online
%R 10.4067/S0366-16442002000400015
%X three triterpenoidal saponins were isolated from the stem bark of cariniana rubra gardner & miers (lecythidaceae). the saponins reported are monodesmosides and a bidesmoside derivatives from the triterpene 2a ,3b ,23-trihydroxy-12-oleanen-28-oic acid (arjunolic acid). the proposed structures are 28-b -glucopyranosyl-23-o-acetyl arjunolic acid 1, 3-o-b -glucopyranosyl arjunolic acid 2 and 28-o-[ a -rhamnopyranosyl-(1£¿ 2)-b -glucopyranosyl] -23-o-acetyl arjunolic acid 3. the structures were elucidated mainly from its nmr spectral data. compounds 1 and 3 are described for the first time.
%K cariniana rubra
%K lecythidaceae
%K arjunolic acid derivatives
%K saponins.
%U http://www.scielo.cl/scielo.php?script=sci_abstract&pid=S0366-16442002000400015&lng=en&nrm=iso&tlng=en