Structure and absolute stereochemistry of novel C15-halogenated acetogenins from the anaspidean mollusc Aplysia dactylomela

Three new halogenated C15-acetogenins, (e.g., compound 1), have been isolated from the Chinese anaspidean mollusc Aplysia dactylomela. The structures have been determined by NMR analysis. The structure of 1 was further secured by a single crystal X-ray study, which also allowed to establish its absolute stereochemistry.