347. Ipecacuanha alkaloids. Part II. The structure of protoemetine and a partial synthesis of (–)-emetine

347. Ipecacuanha alkaloids. Part II. The structure of protoemetine and a partial synthesis of (–)-emetine 346. Ipecacuanha alkaloids. Part I. Fractionation studies and the isolation of two new alkaloids Chapter 3 The Ipecac Alkaloids Ipecac alkaloids from Cephaelis acuminata Structure and Synthesis of Benzoquinolizidine Alkaloids isolated from Alangium lamarckii Hypotensive Alkaloids from Veratrum album Protoveratrine A, Protoveratrine B and Germitetrine B^1a Three New O-Methyltransferases Are Sufficient for All O-Methylation Reactions of Ipecac Alkaloid Biosynthesis in Root Culture of Psychotria ipecacuanha Some Hypotensive Alkaloids from Veratrum album Schoenocaulon Alkaloids. I. Active Principles of Schoenocaulon officinale. Cevacine and Protocevine^1,2 Crystal structure and NMR analysis of the alkaloid protostemotinine