Results 71 to 80 of about 1,059 (150)
, 2016 An unusual spiroketalization strategy in which a hydroxyalkene serves as a precursor to a cyclic enol ether was applied to the synthesis of the ABCD trioxadispiroketal subunit of azaspiracid-1.
Jialiang Li (31220) +2 more
core +2 more sources
Synthesis of the Azaspiracid-1 Trioxadispiroketal
, 2016 The de novo analysis, design, and synthesis of the azaspiracid-1 trioxadispiroketal system is described. A revised structural model was developed on the basis of an independent analysis of the NMR spectral data of the natural product that fit all of the ...
Lisa K. Geisler (2702914) +2 more
core +1 more source
Extraordinary bloom of toxin-producing phytoplankton enhanced by strong retention on the offshore Patagonian shelf [PDF]
BiogeosciencesThe extensive Patagonian continental shelf in the Atlantic Ocean is renowned for its high productivity associated with nutrient-rich waters that fertilize massive phytoplankton blooms, especially along the shelf-break frontal system.
V. A. Guinder +9 more
doaj +1 more source
Total Synthesis of (+)-Azaspiracid-1. An Exhibition of the Intricacies of Complex Molecule Synthesis
, 2016 The synthesis of the marine neurotoxin azaspiracid-1 has been accomplished. The individual fragments were synthesized by catalytic enantioselective processes: A hetero-Diels−Alder reaction to afford the E- and HI-ring fragments, a carbonyl-ene reaction ...
Lisbet Kværnø (2405419) +9 more
core +1 more source
Morphology, molecular phylogeny and azaspiracid profile of Azadinium poporum (Dinophyceae) from the Gulf of Mexico [PDF]
, 2016 Azadinium poporum produces a variety of azaspiracids and consists of several ribotypes, but information on its biogeography is limited. A strain of A. poporum (GM29) was incubated from a Gulf of Mexico sediment sample.
Turner, R. Eugene +8 more
core +1 more source
Neurotoxins from Marine Dinoflagellates: A Brief Review
Marine Drugs, 2008 Dinoflagellates are not only important marine primary producers and grazers, but also the major causative agents of harmful algal blooms. It has been reported that many dinoflagellate species can produce various natural toxins.
Da-Zhi Wang
doaj
, 2016 Azaspiracid, a New Marine Toxin Having Unique Spiro Ring Assemblies, Isolated from Irish Mussels, Mytilus ...
Hideo Naoki (2676340) +7 more
core +1 more source
Synthetic Study of Azaspiracid-1: Synthesis of the EFGHI-Ring Fragment
, 2016 Here, we report a synthesis of the lower half C21−C40 fragment of the shellfish toxin, azaspiracid-1. The C28−C40 fragment was synthesized by a coupling between the C28−C35 epoxide and the C36−C40 dithioacetal anion, followed by the HI-ring spiroaminal ...
Masato Oikawa (1796314) +3 more
core +3 more sources
Toxins, 2019 The occurrence of marine harmful algae is increasing worldwide and, therefore, the accumulation of lipophilic marine toxins from harmful phytoplankton represents a food safety threat in the shellfish industry.
Paz Otero +3 more
doaj +1 more source
, 2007 A highly stereoselective and convergent approach for the key intermediate of the FGHI ring system of azaspiracid is described. The synthesis features the desymmetrization strategy for the construction of the C27-C33 fragment, Masamune-Roush coupling ...
J. Yadav +3 more
core +1 more source