Lois J. Durham

Identity of Tarichatoxin and Tetrodotoxin

Tarichatoxin (C11H17N3O8), a potent neurotoxin recently isolated in pure form from the eggs of the California newt, Taricha torosa, has been found to be identical to tetrodotoxin from the ovaries of Sphoeroides rubripes, the Japanese Fugu or puffer fish. As yet this substance has been detected only in a single family of fish, Tetraodontidae, and in a single family of amphibia, Salamandridae.

Chemical investigations on Putranjiva roxburghii.

Abstract The isolation of a new triterpene, putranjivadione, is described. By a combination of chemical and physical methods it was shown that putranjivadione is friedelane-3,7-dione (I).

Alcaloides du callichilia subsessilis stapf.—II : Structure partielle de la vobtusine☆☆☆★

Resume La discussion de diverses transformatons chimiques et de donnees spectrales—notamment R.M.N. et spectrometrie de masse a haute resolution—conduit a la structure partielle XXIV pour un alcaloide indolique dimere, la vobtusine.