Varacin and Three New Marine Antimicrobial Polysulfides from the Far-Eastern Ascidian Polycitorsp.

Abstract

Varacin [1] and three new antimicrobial marine polysulfides, varacins A-C [3-5], have been isolated from the Far Eastern ascidian Polycitor sp. Their structures have been elucidated by spectroscopic methods and by chemical transformations.