S. Funayama et al., CHEMISTRY OF ACRONYCINE .15. NEW ACRIDONE DERIVATIVES OBTAINED BY HEATING THE HCL SALT OF ACRONYCINE, Heterocycles, 43(6), 1996, pp. 1251-1256
By heating the HCl salt of acronycine (1), the new acridone derivative
s (6, 9, 13 and 15) were obtained together with noracronycine (2), dih
ydronoracronycine (3), 1,3-dihydroxy-10-methylacridone (4) and (5). Co
mpound (5), one of the main products of this reaction, is a linear typ
e dihydro derivative of 2, compound (9) is a furanoacridone derivative
with a geminal methyl group and compound (15) is a derivative of 5 wi
th an additional C-5 unit.