Arbophylline, a novel heptacyclic indole with a cage skeleton incorporating an acetal moiety

Arbophylline, a novel heptacyclic indole with a cage skeleton incorporating an acetal moiety A Cytotoxic Indole Characterized by Incorporation of a Unique Carbon–Nitrogen Skeleton and Two Pentacyclic Corynanthean Alkaloids Incorporating a Substituted Tetrahydrofuranone Ring from Kopsia arborea Arboflorine, an Unusual Pentacyclic Monoterpenoid Indole Alkaloid Incorporating a Third Nitrogen Atom Arboridinine, a Pentacyclic Indole Alkaloid with a New Cage Carbon–Nitrogen Skeleton Derived from a Pericine Precursor Arborisidine and Arbornamine, Two Monoterpenoid Indole Alkaloids with New Polycyclic Carbon–Nitrogen Skeletons Derived from a Common Pericine Precursor Arboduridine, a hexacyclic caged monoterpenoid indole incorporating cyclohexane, piperidine, and bridged-fused pyrrolidine-tetrahydrofuran moieties Two novel indole alkaloids, Kopsiyunnanines A and B, from a Yunnan Kopsia Two novel indole alkaloids, Kopsiyunnanines A and B, from a Yunnan Kopsia Two New Aspidosperma Indole Alkaloids from Yunnan Kopsia arborea Two New Aspidosperma Indole Alkaloids from Yunnan Kopsia arborea