Mersicarpine, an unusual tetracyclic dihydroindole alkaloid incorporating a seven-membered imine ring

Mersicarpine, an unusual tetracyclic dihydroindole alkaloid incorporating a seven-membered imine ring Syntheses of Mersicarpine, a Monoterpenoid Indole Alkaloid with an Atypical Tetracyclic Structure Mersilongine, a novel tetracyclic quinolinic alkaloid from Kopsia Mersinines A and B and mersiloscine, novel quinolinic alkaloids from Kopsia Arboridinine, a Pentacyclic Indole Alkaloid with a New Cage Carbon–Nitrogen Skeleton Derived from a Pericine Precursor Leucolusine, a tetracyclic alkaloid with a novel ring system incorporating an oxindole moiety and fused piperidine-tetrahydrofuran rings Arbophylline, a novel heptacyclic indole with a cage skeleton incorporating an acetal moiety Kopsifolines A, B, and C, indole alkaloids with a novel hexacyclic carbon skeleton from Kopsia Novel Cage Indoles from a Malaysian Kopsia Novel Cage Indoles from a Malaysian <i>Kopsia</i>