Rutaceous constitutents. Part II. Two acridone alkaloids from Atalantia ceylanica(Rutaceae)

Abstract
Two acronycine analogues, 3,12-dihydro-6,11-dihydroxy-3,3,12-trimethylpyrano[2,3-c]acridin-7-one and its 5-(3-methylbut-2-enyl) derivative, have been isolated from Atalantia ceylanica(Rutaceae).