Gramodendrine, a bipiperidyl-indole alkaloid from Lupinus arbustus subsp. calcara tus

Gramodendrine, a bipiperidyl-indole alkaloid from Lupinus arbustus subsp. calcara tus Identification of toxic alkaloids from the calcaratus subspecies of Lupinus arbustus Alkaloid studies. LXVIII. Novel piperidyl alkaloids from Lupinus formosus Arboridinine, a Pentacyclic Indole Alkaloid with a New Cage Carbon–Nitrogen Skeleton Derived from a Pericine Precursor Fusiformines A and B: new indole alkaloids fromMelodinus fusiformis Arborisidine and Arbornamine, Two Monoterpenoid Indole Alkaloids with New Polycyclic Carbon–Nitrogen Skeletons Derived from a Common Pericine Precursor Arbophylline, a novel heptacyclic indole with a cage skeleton incorporating an acetal moiety Arboduridine, a hexacyclic caged monoterpenoid indole incorporating cyclohexane, piperidine, and bridged-fused pyrrolidine-tetrahydrofuran moieties Cell-Free Synthesis of the Alkaloids Ammodendrine and Smipine Leucomidines A–C, novel alkaloids from Leuconotis griffithii