Aplidites (A-G): Macrocyclic Orthonitrites From an Australian Tunicate, Aplidium sp.

Abstract

An Australian marine tunicate Aplidium sp. collected from the Great Australian Bight has been found to contain seven macrocyclic alkaloids, identified as the novel marine metabolites aplidites A-G (1)-(7). Each aplidite incorporates a hitherto undescribed orthonitrite functionality. Structures for the aplidites were secured by detailed spectroscopic analysis, derivatization and degradation.