Isolation and Characterization of the New Purine 1,3,7-Trimethylisoguanine from the New Zealand Ascidian Pseudodistoma cereum

Isolation and Characterization of the New Purine 1,3,7-Trimethylisoguanine from the New Zealand Ascidian <i>Pseudodistoma </i><i>c</i><i>ereum</i> Isolation and Characterization of the New Purine 1,3,7-Trimethylisoguanine from the New Zealand Ascidian Pseudodistoma cereum 1,3-Dimethylguanine, a New Purine from the New Zealand Ascidian <i>Botrylloides leachi</i> 6-Methoxy-7-methyl-8-oxoguanine, an Unusual Purine from the Ascidian <i>Symplegma rubra</i> Isolation and Characterization of 1,3-Dimethylisoguanine from the Bermudian Sponge <i>Amphimedon viridis</i> 1,3-Dimethylisoguanine, a New Purine from the Marine Sponge <i>Amphimedon viridis</i> 1,3,7-Trimethylguanine from the Sponge Latrunculia brevis 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> Three New Pseudodistomins, Piperidine Alkaloids from the Ascidian <i>Pseudodistoma</i> <i>megalarva</i>