Lepadin A, A decahydroquinoline alkaloid from the tunicate Clavelina lepadiformis

Lepadin A, A decahydroquinoline alkaloid from the tunicate Clavelina lepadiformis Lepadiformine, a new marine cytotoxic alkaloid from Clavelina lepadiformis Müller Lepadins D−F:  Antiplasmodial and Antitrypanosomal Decahydroquinoline Derivatives from the Tropical Marine Tunicate <i>Didemnum</i> sp. Lepadins D−F:  Antiplasmodial and Antitrypanosomal Decahydroquinoline Derivatives from the Tropical Marine Tunicate <i>Didemnum</i> sp. Pictamine, a quinolizidine alkaloid from the tunicate clavelina picta Lepadins F−H, New <i>cis</i>-Decahydroquinoline Alkaloids from the Australian Ascidian <i>Aplidium </i><i>t</i><i>abascum</i> Lepadins F−H, New cis-Decahydroquinoline Alkaloids from the Australian Ascidian Aplidium tabascum Insights into Cytotoxic Behavior of Lepadins and Structure Elucidation of the New Alkaloid Lepadin L from the Mediterranean Ascidian Clavelina lepadiformis Cylindricines A and B, novel alkaloids from the ascidian clavelina cylindrica Lepadins I–K, 3-O-(3′-Methylthio)acryloyloxy-decahydroquinoline Esters from a Bahamian Ascidian Didemnum sp. Assignment of Absolute Stereostructures