A NEW DEPSIDE ISOLATED FROM THE BARK OF RAUWOLFIA-MATTFELDIANA

Authors
VIEIRA IJC CECCHI CMP MATHIAS L BRAZ R RODRIGUES E
Citation
Ijc. Vieira et al., A NEW DEPSIDE ISOLATED FROM THE BARK OF RAUWOLFIA-MATTFELDIANA, Journal of the Brazilian Chemical Society, 9(1), 1998, pp. 91-95
Citations number
10
Categorie Soggetti
Chemistry
Journal title
Journal of the Brazilian Chemical Society → ACNP
ISSN journal
01035053
Volume
9
Issue
1
Year of publication
1998
Pages
91 - 95
Database
ISI
SICI code
0103-5053(1998)9:1<91:ANDIFT>2.0.ZU;2-J
Abstract
From the hexane extract from stem bark of Rauwolfia mattfeldiana Markg r. (Apocynaceae) a new depside (1, methyl 4'-O-methylarthonioate), alo ng with 1-hydroxy-3,6-dimethoxy-8-methyl-xanthone (4), lupeol (5), sit osterol (6) and stigmasterol (7) were isolated. The structures of thes e natural products were elucidated by spectral data analysis. 2D NMR e xperiments were used to establish the structure and the complete hydro gen and carbon chemical shift assignments of the new depside.