C 2766 (OTTO) 5-Cyano indole, 99% Cas 15861-24-2 - used for parallel synthesis of dihydroisoquinolines via silver and L-proline co-catalyzed three-component coupling reaction, preparation of novel PPARα/γ dual agonists for potential treatment of metabolic syndrome and IDDM, chemo selective and regioselective preparation of benzoyl indoles, 4,5-dihydrocyclopenta[c]quinolines by palladium-catalyzed ring-expansion reaction alkynes, using O2 as the oxidant and vinylindoles by hydroarylation of alkynes using indium bromide catalyst.