Hızlıateş C.G.Gülle S.2024-07-222024-07-2220160022152Xhttp://akademikarsiv.cbu.edu.tr:4000/handle/123456789/15676Synthesis of tetracyclic hexahydropyrido[3,2-c]carbazoles (9a and 9b) and hexahydropyrrolo[3,2-c]carbazoles (13a and 13b) structures was achieved via a new synthetic approach for the synthesis of related indole alkaloids such as deethylaspidospermidine and deethylibophyllidine. Hexahydropyrrolo[3,2-c]carbazole structure was constructed for the first time starting from ethyl 4-oxo-cyclohexanecarboxylate in seven steps. Some tetrahydrocarbazole derivatives (4, 5, 6, 7, 11, and 12) were also synthesized. © 2015 HeteroCorporationEnglishArticle10.1002/jhet.2467