JOURNAL OF HETEROCYCLIC CHEMISTRY, cilt.46, sa.6, ss.1416-1419, 2009 (SCI-Expanded)
In this study, a new synthetic route for the synthesis of 1-hydroxy-4-oxo-1,2,3,4-tetrahydrocarbazole derivatives 12 and 13 from lactone 11 is described. Unfortunately, cyclization of compounds 12 and 13 to their respective azocino[4,3-b]indole derivatives 14 and 15 was unsuccessful.