Perhydroisoquinoline Synthesis: C(20)-Substituted Analogs of Yohimbine-Type Alkaloids

Perhydroisoquinoline Synthesis: C(20)-Substituted Analogs of Yohimbine-Type Alkaloids <b>Oxidative Transformations of Indole Alkaloids. II. The Preparation of Oxindoles from <b>cis</b>-DE-Yohimbinoid Alkaloids. The Partial Synthesis of Carapanaubine</b> Epiallo-yohimbine derivatives isolated from in vitro hairy-root cultures of Catharanthus trichophyllus Alcaloides Des Feuilles De Neisosperma glomerata Synthesis of indole alkaloid analogues containing the novel hexahydropyrrolo[1′,2′,3′:1,9a,9]imidazo[1,2-a]indole skeleton by ring-closing reactions of tryptophan-derived α-amino nitriles Criofolinine and Vernavosine, New Pentacyclic Indole Alkaloids Incorporating Pyrroloazepine and Pyridopyrimidine Moieties Derived from a Common Yohimbine Precursor Synthesis of Tetrahydroisoquinoline-Alkaloid Analogs with a Diphenyloxide Fragment Synthesis of 1-Hydroxyyohimbine and Its Novel Skeletal Rearrangement Reaction into Oxindole Derivatives Indole alkaloids from Aspidosperma pruinosum Synthesis of tricyclic analogs of stephaoxocanidine and their evaluation as acetylcholinesterase inhibitors