82354-36-7Relevant articles and documents
Synthesis of Acridone Alkaloids: Glycocitrine-I, N-Methylatalphylline, Atalphyllidine, 11-Hydroxyacronycine and 11-Hydroxynoracronycine
Ramesh, Kakarla,Kapil, R. S.
, p. 684 - 687 (2007/10/02)
Selective benzylation of 1,3,5-trihydroxyacridone (3) results in 5-benzylated acridone (6), which on prenylation affords a mixture of monoprenylated acridone (7) and diprenylated acridone (9).Treatment of 7 with methyl iodide followed by hydrogenolysis furnishes glycocitrine-I (1). 9 on benzylation, followed by N-methylation and debenzylation yields N-methylatalphylline (2).Condensation of 6 with 3-hydroxyisovaleraldehyde dimethylacetal results in 15, which on hydrogenolysis furnishes atalphyllidine (12). 15 on methylation affords N-methylacridone (16) and N,O-dimethylacridone (17).Compounds 16 and 17 on hydrogenolysis afford 11-hydroxynoracronycine (13) and 11-hydroxyacronycine (14), respectively.