STUDIES ON THE CHEMICAL CONSTITUENTS OF DONGFENG-U Atalantia buxifolia

Atalantia buxifolia (Rutaceae) is a folk drug used in China, from which two acridone alkaloids named Atalafoline and Atalafoline-B were isolated. Atalafoline-B is a new compound and its structure was proposed as N-methyl-1,4,5,-trihydroxy-3,6,-dimethoxyacridine-9-one based on UV, IR, H-NMR and MS spectra data.