Identification of isodomoic acid D and two new geometrical isomers of domoic acid in toxic mussels

Abstract

Isodomoic acids E and F, two new geometrical isomers of the neurotoxin domoic acid, have been found to occur with domoic acid and isodomoic acid D in extracts of toxic mussels. The entire set of geometrical isomers can be prepared in the laboratory by photolysis. Keywords: amnesic shellfish toxin, domoic acid, isodomoic acid, neurotoxin.