1983 年 31 巻 9 号 p. 3084-3090
The 13C-nuclear magnetic resonance spectra of twenty-seven acridone alkaloids including angular pyrano [2, 3-c] acridones and linear pyrano [3, 2-b] acridones have been analyzed and assigned. The information should be useful for the structure elucidation of new acridone alkaloids.