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.