3,12-Dihydro-6,11-dihydroxy-3,3-dimethyl-7H-pyrano[2,3-c]acridin-7-one

One of two acridone alkaloids isolated from Atalantia macrophylla, the structure has been established as i:i-dirnethyl(pyrano-5:6':3:4)-1:5-dihydroxylacridone from spectroscopic evidence and chemical reactions.

Basa, Experientia, 31,1387 (1975)