Tetrodotoxin and its analogues in extracts from the toad Atelopus oxyrhynchus (family: Bufonidae)

Tetrodotoxin and its analogues in extracts from the toad Atelopus oxyrhynchus (family: Bufonidae) Tetrodotoxin derivatives in puffer fish 1-Hydroxy-5,11-dideoxytetrodotoxin, the first N-hydroxy and ring-deoxy derivative of tetrodotoxin found in the newt Taricha granulosa New tetrodotoxin analogs from the newt Cynops ensicauda Isolation and Biological Activity of 8-<i>Epi</i>tetrodotoxin and the Structure of a Possible Biosynthetic Shunt Product of Tetrodotoxin, Cep-226A, from the Newt <i>Cynops ensicauda popei</i> Isolation of 6-Deoxytetrodotoxin from the Pufferfish,<i>Takifugu pardalis</i>, and a Comparison of the Effects of the C-6 and C-11 Hydroxy Groups of Tetrodotoxin on Its Activity Structures of <i>N</i>-Hydroxy-Type Tetrodotoxin Analogues and Bicyclic Guanidinium Compounds Found in Toxic Newts Isolation and Structural Assignment of 5-Deoxytetrodotoxin from the Puffer Fish<i>Fugu poecilonotus</i> A New Indole Alkaloid from the Toad Venom of Bufo bufo gargarizans Chemical profile of the parotoid gland secretion of the Amazonian toad (Rhinella margaritifera)