Isolation and synthesis of a novel β-carboline guanidine derivative tiruchanduramine from the Indian ascidian Synoicum macroglossum

Isolation and synthesis of a novel β-carboline guanidine derivative tiruchanduramine from the Indian ascidian Synoicum macroglossum Isolation and synthesis of a novel β-carboline guanidine derivative tiruchanduramine from the Indian ascidian Synoicum macroglossum Beta-carboline alkaloids derived from the ascidian Synoicum sp. N-Methyl-β-carbolinium Salts and an N-Methylated 8-Oxoisoguanine as Acetylcholinesterase Inhibitors from a Solitary Ascidian, Cnemidocarpa irene Alkaloids from the Tunicate Polycarpa aurata from Chuuk Atoll Eudistomidins E and F, new β-carboline alkaloids from the okinawan marine tunicate Eudistoma glaucus Three New Pyridoacridine Type Alkaloids from a Singaporean Ascidian Nostocarboline:  Isolation and Synthesis of a New Cholinesterase Inhibitor from<i>Nostoc</i>78-12A Isolation of 2-(3‘-Bromo-4‘-hydroxyphenol)ethanamine from the New Zealand Ascidian <i>Cnemidocarpa bicornuta</i> Isolation of 2-(3‘-Bromo-4‘-hydroxyphenol)ethanamine from the New Zealand Ascidian <i>Cnemidocarpa bicornuta</i>