Feature-Based Molecular Networking Discovery of Bromopyrrole Alkaloids from the Marine Sponge Agelas dispar

VF Freire, JR Gubiani, TM Spencer… - Journal of natural …, 2022 - ACS Publications
Investigation of the marine sponge Agelas dispar MeOH fractions using feature-based
molecular networking, dereplication, and isolation led to the discovery of new bromopyrrole …

The isolation of water-soluble natural products–challenges, strategies and perspectives

RGS Berlinck, CM Crnkovic, JR Gubiani… - Natural Product …, 2022 - pubs.rsc.org
Covering period: up to 2019 Water-soluble natural products constitute a relevant group of
secondary metabolites notably known for presenting potent biological activities. Examples …

The chemistry and biology of guanidine secondary metabolites

RGS Berlinck, DI Bernardi, T Fill… - Natural Product …, 2021 - pubs.rsc.org
Covering: 2017–2019 Guanidine natural products isolated from microorganisms, marine
invertebrates and terrestrial plants, amphibians and spiders, represented by non-ribosomal …

Tetrodotoxins in the flatworm Planocera multitentaculata

R Suo, M Tanaka, H Oyama, Y Kojima, K Yui… - Toxicon, 2022 - Elsevier
The marine polyclad flatworm Planocera multitentaculata is known to possess high levels of
tetrodotoxin (TTX), but the presence of TTX analogues in the species has been unexplored …

Structures of N-Hydroxy-Type Tetrodotoxin Analogues and Bicyclic Guanidinium Compounds Found in Toxic Newts

Y Kudo, CT Hanifin, Y Kotaki… - Journal of natural …, 2020 - ACS Publications
The biosynthesis of tetrodotoxin (TTX, 1), a potent neurotoxin widely distributed in marine
and terrestrial metazoans, remains unresolved. A significant issue has been identifying …

Biosynthesis of marine toxins

JR Chekan, TR Fallon, BS Moore - Current Opinion in Chemical Biology, 2020 - Elsevier
Throughout history, humans have encountered natural toxic chemicals from the ocean
environment, often through contaminated seafood. Although marine toxins can be harmful to …

Temporal Variation of the Profile and Concentrations of Paralytic Shellfish Toxins and Tetrodotoxin in the Scallop, Patinopecten yessoensis, Cultured in a Bay of East …

S Numano, Y Kudo, Y Cho, K Konoki… - Marine Drugs, 2019 - mdpi.com
Paralytic shellfish toxins (PSTs) are the major neurotoxic contaminants of edible bivalves in
Japan. Tetrodotoxin (TTX) was recently detected in bivalve shellfish around the world …

Total synthesis of Tetrodotoxin

K Murakami, T Toma, T Fukuyama… - Angewandte …, 2020 - Wiley Online Library
A total synthesis of tetrodotoxin was accomplished. A Diels–Alder reaction between a known
enone and a siloxy diene gave a tricyclic product, the steric bias of which was used to …

Japanese planocerid flatworms: difference in composition of tetrodotoxin and its analogs and the effects of ingestion by toxin-bearing fishes in the Ryukyu Islands …

H Ueda, M Ito, R Yonezawa, K Hayashi, T Tomonou… - Marine …, 2024 - Springer
Tetrodotoxin (TTX), known as pufferfish toxin, is a potent neurotoxin blocking sodium
channels in muscle and nerve tissues. TTX has been detected in various taxa other than …

Distribution of tetrodotoxin and its analogs in the toxic flatworm Planocera multitentaculata from Honshu Island, Japan

R Suo, M Tanaka, M Asano, R Nakahigashi, M Adachi… - Fisheries Science, 2024 - Springer
Tetrodotoxin (TTX), one of the most potent naturally occurring neurotoxins, has been
detected in both marine and terrestrial organisms. The marine polyclad flatworm Planocera …