%0 Journal Article
%T Alkaloids from Annona dioica
%A Santos Paulo R. D. dos
%A Morais Anselmo A.
%A Braz-Filho Raimundo
%J Journal of the Brazilian Chemical Society
%D 2003
%I Sociedade Brasileira de Qu¨Şmica, SBQ
%X From the ethanolic extract of the wood of Annona dioica were isolated the known 1-aza-4-methylanthraquinone, lasiodiplodin, liriodenine, a mixture of 1-aza-5,9,10-trimethoxy-4-methyl-2-oxo-1,2-dihydroanthracene and 1-aza-8,9,10-trimethoxy-4-methyl-2-oxo-1,2-dihydroanthracene (geovanine) and the new alkaloid 1,2-methylenedioxy-6alpha,7-dehydroaporphine-4(S )-(4-hydroxy-3,5-dimethoxyphenyl)-3,4-dihydro-2(1H)-pyridinone. The structures of these natural products were elucidated on the basis of their spectral data, including NOE experiments and homonuclear 1H-1H-COSY e heteronuclear 1H-13C-COSY-nJ CH (HMQC, n=1 and HMBC, n=2 and 3) 2D-shift-correlated NMR spectra.
%K Annona dioica
%K Annonaceae
%K quinoline alkaloids
%K lignoaporphine
%K lasiodiplodin
%U http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532003000300009