Diastereomeric C-glycosyloxanthrones from picramnia antidesma
Rojas Lima, Susana
1999
María del Rosario Hernández-Medel, Claudia O. Ramírez-Corzas, M. Nalleli Rivera-Domínguez, Julieta Ramírez-Mendez, Rosa L. Santillan Baca and Susana Rojas-Lima, Diastereomeric C-glycosyloxanthrones from Picramia antidesma, Phytochemistry, 50, 1379-1383 (1999). DOI: http://dx.doi.org/10.1016/S0031-9422(98)00354-9
Abstract
Nine compounds were isolated and identified from the stem of Picramnia antidesma. Two of the isolated compounds: mayoside and saroside, which is new, are diastereoisomeric oxanthrones. The structure of saroside has been obtained on the basis of spectroscopic evidence. The absolute configuration of this diastereoisomeric pair has been determined by CD spectra, and that of saroside was further established by X-ray crystallographic analysis.
Artículos relacionados
Facile synthesis of 1,3,6-oxadiazepines from 2,2?-(1,2-ethanediyldiimino)bisphenols
O-benzyl-N-(2-furoyl)thiocarbamate
Diastereoselective Synthesis of Spiro-?-lactams via Staudinger Reaction
Diastereoselective Synthesis of Spiro-?-lactams via Staudinger Reactio
Aroylthioureas: new organic ionophores for heavy-metal ion selective electrodes
Phenylmethyl 2,3,4-tri-O-acetyl--D-fucopyranoside