• Reactant for synthesis of oxazino[4,3-a]indoles via cascade addition-cyclization reactions1 • Reactant for preparation of indolecarboxamides as cannabinoid CB1 receptor antagonists2 • Reactant for preparation of indole-3-propionic acids as antiinflammatory and analgesic agents3 • Reactant for Friedel-Crafts acylation with nitrobenzoyl chloride4 • Reactant for oximation reactions5