6,7-Methylenedioxy-3-thia-1(2H,4H)acridone and the related acridine-fused quinolines and pyridines,andalso their flavylium-perchlorates were synthesized.The str
The modified Hofmann degradation of koumine(1) has proved abortive. The struture and stereochemistry of the main product(3) were deduced by spectral methods and
Two new alkaloids, maistemonine and oxymaistemonine were isolated from the roots of $temona mairei collected from Yunnan Province, southwest of China. Their str