The synthesis of melicopicine and some Trimethoxy-10-methylacridones

Abstract

1,2,3,4-Tetramethoxy-10-methylacridone has been prepared and shown to be identical with a natural specimen of melicopicine. The four related isomeric trimethoxy-10-methylacridones have been prepared and the 2,3,4-trimethoxy derivative was shown to be identical with the trimethoxy derivative obtained from evoxanthine. A new synthesis of 10-methylacridones is described.