K. Ofuji et al., Structures of azaspiracid analogs, azaspiracid-4 and azaspiracid-5, causative toxins of azaspiracid poisoning in Europe, BIOS BIOT B, 65(3), 2001, pp. 740-742
Two new analogs of azaspiracid, azaspiracid-4 and azaspiracid-5, isolated f
rom the mussel Mytilus edulis, involved in a newly emerged shellfish poison
ing in Europe were determined to he 3-hydroxy-22-demethylazaspiracid and 23
-hydroxy-22-demethylazaspiracid, respectively.