Irnigaine and N-Methylirnigaine, Two New Piperidinol Alkaloids from the Tubers ofArisarum vulgare

Irnigaine and N-Methylirnigaine, Two New Piperidinol Alkaloids from the Tubers ofArisarum vulgare Structure of Irniine, a Pyrrolidine Alkaloid from Arisarum vulgare A New Toxic Alkylpyrrolidine Alkaloid from<i>Arisarum vulgare</i> A New Toxic Alkylpyrrolidine Alkaloid fromArisarum vulgare Antibiotic and Antifungal Pyrrolidine Alkaloids, fromArisarum vulgare Neolignans and alkaloids from Piper argyrophylum Alkaloids from <i>Piper sarmentosum</i> and <i>Piper nigrum</i> Nigramides A−S, Dimeric Amide Alkaloids from the Roots of <i>Piper </i><i>n</i><i>igrum</i> New Amide Alkaloids from the Roots of Piper nigrum Isopiperolein B: an alkamide from Piper nigrum