2-N-Methylexcentricine, a New Alkaloid from Roots of Stephania excentrica

2-N-Methylexcentricine, a New Alkaloid from Roots of Stephania excentrica 2-<i>N</i>-Methylexcentricine, a New Alkaloid from Roots of <i>Stephania excentrica</i> An Alkaloid with a Novel Skeleton from the Roots of<i>Stephania excentrica</i> Stephaoxocanine, a Novel Dihydroisoquinoline Alkaloid from <i>Stephania cepharantha</i> 4'-O-Methylstephavanine from Stephania abyssinica A Novel Phenanthrene and An Undescribed Alkaloid from the Roots of Stephania tetrandra (+)-3′,4′-dihydrostephasubine, a bisbenzylisoquinoline alkaloid from Stephania hernandifolia Alkaloids from Roots ofStephania rotundaand Their Cholinesterase Inhibitory Activity New Alkaloids from the Root of Stephania tetrandra (Fen-Fang-Ji) Alkaloids of Stephania hernandifolia VIII. Methylhernandine