Uludağ, NesimiYılmaz, RecepAsutay, OktayÇolak, Naki2022-05-112022-05-1120160009-31221573-8353https://doi.org/10.1007/s10593-016-1860-4https://hdl.handle.net/20.500.11776/5950A new synthetic route to the 1,5-methanoazocino[4,3-b]indole is described. The aim of the present study is to provide a tetracyclic skeleton for the synthesis of pentacyclic Strychnos alkaloids (tubifolidine and strychnopivotine). Starting from a carbazole derivative, the ring closure was achieved by an intramolecular aldol reaction. The final product was obtained in 45% in the overall yield over 7 steps.en10.1007/s10593-016-1860-4info:eu-repo/semantics/closedAccess1,5-methanoazocino[4,3-b]indoleStrychnos alkaloidsIndole AlkaloidsAsymmetric-SynthesisFormal SynthesisRecent ProgressRouteChemistryUleineEntryArticle523196199Q3WOS:0003764662000132-s2.0-84964553611Q3