Results 11 to 20 of about 1,931 (193)

Total synthesis of (+)-swainsonine and (+)-8-epi-swainsonine

open access: yesRSC Adv., 2014
Enantioselective total synthesis of (+)-swaisonine that hinges on a combination of organocatalyzed aldolization and reductive amination, affords the title compound in 9 steps, with 24% overall yield.
Trajković, Milos   +3 more
openaire   +3 more sources

Asymmetric Synthesis of (–)-Swainsonine

open access: yesAustralian Journal of Chemistry, 2004
This paper describes a new synthesis of (–)-swainsonine via the ring-closing metathesis reaction of a substituted 3-allyl-4-vinyloxazolindin-2-one and subsequent diastereoselective syn -dihydroxylation of the resulting pyrrolo- [1,2- c ]oxazol-3-one.
Lindsay, Karl, Pyne, Stephen G
openaire   +4 more sources

Swainsonine Biosynthesis Genes in Diverse Symbiotic and Pathogenic Fungi

open access: yesG3: Genes, Genomes, Genetics, 2017
Swainsonine—a cytotoxic fungal alkaloid and a potential cancer therapy drug—is produced by the insect pathogen and plant symbiont Metarhizium robertsii, the clover pathogen Slafractonia leguminicola, locoweed symbionts belonging to Alternaria sect ...
Daniel Cook   +9 more
doaj   +3 more sources

Total Synthesis of ( + )-Swainsonine, (–)- Swainsonine, ( + )-8-epi-Swainsonine and ( + )- Dideoxy-Imino-Lyxitol by an Organocatalyzed Aldolization/Reductive Amination Sequence [PDF]

open access: yes, 2022
A tactical combination of either (S)- or (R)-proline catalyzed aldol reaction followed by intramolecular reductive amination enabled the synthesis of a chiral pyrrolidine derivative with 3 contiguous stereocenters in only 2 synthetic steps, starting from achiral precursors. This product, obtainable in both enantiomeric forms, was further exploited as a
Trajković, Miloš D.   +4 more
openaire   +3 more sources

Phylogenetic Comparison of Swainsonine Biosynthetic Gene Clusters among Fungi

open access: yesJournal of Fungi, 2022
Swainsonine is a cytotoxic alkaloid produced by fungi. Genome sequence analyses revealed that these fungi share an orthologous gene cluster, SWN, necessary for swainsonine biosynthesis.
Marwa Neyaz   +3 more
doaj   +2 more sources

Degradation of Swainsonine by the NADP-Dependent Alcohol Dehydrogenase A1R6C3 in Arthrobacter sp. HW08

open access: yesToxins, 2016
Swainsonine is an indolizidine alkaloid that has been found in locoweeds and some fungi. Our previous study demonstrated that Arthrobacter sp. HW08 or its crude enzyme extract could degrade swainsonie efficiently.
Yan Wang   +5 more
doaj   +2 more sources

Host-Specific and Environment-Dependent Effects of Endophyte Alternaria oxytropis on Three Locoweed Oxytropis Species in China [PDF]

open access: yesJournal of Fungi
Plant–endophyte symbioses are widespread in grasslands. While symbiotic interactions often provide hosts with major fitness enhancements, the role of the endophyte Alternaria oxytropis, which produces swainsonine in locoweeds (Oxytropis and Astragalus ...
Yue-Yang Zhang, Yan-Zhong Li, Zun-Ji Shi
doaj   +2 more sources

Metabolomic analysis of swainsonine poisoning in renal tubular epithelial cells [PDF]

open access: yesFrontiers in Veterinary Science
Locoweed is a poisonous plant widely present in grasslands around the world. Swainsonine (SW), an indole alkaloid that, is the main toxic component of the locoweed. To understand the mechanism of SW-induced toxicity and to delineate the metabolic profile
Shuhang Zhang   +9 more
doaj   +2 more sources

The Effects of P5CR Gene Function of Endophytic Fungus Alternaria oxytropis OW7.8 on Swainsonine Biosynthesis [PDF]

open access: yesBiomolecules
Locoweeds, including Oxytropis and Astragalus species, are globally recognized as plants containing swainsonine (SW), a neurotoxic alkaloid that induces neurological dysfunction and growth inhibition in livestock.
Fan Yang   +8 more
doaj   +2 more sources

Morphological and Phylogenetic Characterization of Alternaria Section Undifilum Fungal Endophytes from Astragalus and Swainsona spp. [PDF]

open access: yesJournal of Fungi
The locoweeds Astragalus and Oxytropis in the Americas and China, as well as Swainsona in Australia, harbor swainsonine-producing endophytes responsible for “locoism” or “pea struck” syndromes in grazing animals.
Marwa Neyaz   +3 more
doaj   +2 more sources

Home - About - Disclaimer - Privacy