Lamellarin-s: A New Aromatic Metabolite from an Australian Tunicate, Didenemnum sp.

Abstract

An Australian tunicate Didemnum sp. has yielded a new alkaloid lamellarin-S (1) along with the known compound lamellarin-K (12). Of this structure class, lamellarin-S (1) is the first example that demonstrates atropisomerism , and its structure was secured by spectroscopic analysis.