%0 Journal Article
%T Caffeoyl esters of threonic acid and its lactone from Viguiera Pazensis
%A Uriburu
%A Mar¨ªa L
%A Gil
%A Roberto R
%A Sosa
%A Virginia E
%A de la Fuente
%A Juana R
%J The Journal of Argentine Chemical Society
%D 2008
%I Scientific Electronic Library Online
%X two caffeoyl esters of sugar derivatives: 3-o-caffeoyl-2-c-methyl-d-threono-1,4-lactone, 4-o-caffeoyl-2-c-methyl-d-threonic acid, along with the previously known compounds: 2-c-methyl-d-threono-1,4-lactone, caffeic acid, carabrone, 5,7,3'-trihydroxy-4'-methoxyflavone, and 5,7,3'-trihydroxy-6,4'-dimethoxyflavone were isolated from the aerial parts of viguiera pazensis. their structures were elucidated by application of various spectroscopic methods, including 1d and 2d nmr spectroscopy.
%K viguiera pazensis
%K asteraceae
%K 3-o-caffeoyl-2-c-methyl-d-threono-1
%K 4-lactone
%K 4-o-caffeoyl-2-c-methyl-d-threonic acid
%K 2-c-methyl-d-threono-1
%K 4-lactone.
%U http://www.scielo.org.ar/scielo.php?script=sci_abstract&pid=S1852-14282008000100006&lng=en&nrm=iso&tlng=en