Mersilongine, a novel tetracyclic quinolinic alkaloid from Kopsia

Mersilongine, a novel tetracyclic quinolinic alkaloid from Kopsia Mersinines A and B and mersiloscine, novel quinolinic alkaloids from Kopsia Mersinaline and mersirachine, novel quinolinic alkaloids of the mersinine group from Kopsia Mersicarpine, an unusual tetracyclic dihydroindole alkaloid incorporating a seven-membered imine ring Mersiphyllines A and B from Kopsia. Determination of relative configuration at a quaternary center via formation of an alkaloid–borane complex Mersiphyllines A and B from Kopsia. Determination of relative configuration at a quaternary center via formation of an alkaloid–borane complex 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> The alkaloids of the mersinine group: a new subclass of the monoterpenoid indole alkaloids from Kopsia