1. Nitta, I. Nature (London),1958, 181, 761 (struct)
2. Impellizzeri, G. Phytochemistry,1975, 14, 1549 (isol)
3. McGeer, E.G. ,Eds., Kainic Acid as a Tool in
4. Neurobiology,Raven Press, N.Y., 1978 (book)
5. Oppolzer, W. Tetrahedron Lett., 1978, 3397.