N ACRIDONE ALKALOID FROM CHINESE DRUG "TUNGFENG-JIE" (ATALANTIA BUXIFOLIA)

A new acridone alkaloid N-methyl-1,3-dihydroxy-2,5,6-trimethoxyacridine-9-one (named Atalafoline) has been isolated from the root of Atalantia buxifolia (Rutaceae) collected from Hainan island. Its structure has been derived from spectroscopic studies and chemical reactions.