Results 161 to 170 of about 435,947 (354)

Dearomatization with Axial‐to‐Central Chirality Conversion

open access: yesEuropean Journal of Organic Chemistry, EarlyView.
Atropisomers are exciting synthetic targets with unique properties, which find applications in many fields of chemistry. However, considering them as substrates is not very frequent, notably in the context of dearomatization reaction. We wish to discuss the different strategies for the dearomatization of aromatic atropisomers with axial‐to‐central ...
Morgane Mando   +3 more
wiley   +1 more source

Prehistoric psychotropic consumption in Andean Chilean mummies [PDF]

open access: yes, 2007
Hallucinogenic plants are often regarded as the main source of psychoactive drugs in antiquity to reach deep altered states of consciousness^1,2^. Many researchers believe this was particularly true during the Tiwanaku empire expansion, circa (500-1000 A.
Bernardo T. Arriaza   +2 more
core   +1 more source

Phase‐Transfer‐Catalyzed Interrupted Barton–Zard Reaction Between Electron‐Deficient Indoles and Benzophenone‐Derived Isocyanides

open access: yesEuropean Journal of Organic Chemistry, EarlyView.
A cascade reaction under phase‐transfer conditions between 3‐nitro indoles and isocyanomethylene dibenzenes affords the construction of pyrrolo[3,4‐b]indole cores. Control experiments provide insight into moderate product yields and clarify why the reaction is not amenable to asymmetric induction. A cascade reaction enabling the construction of pyrrolo[
Ana Mikleušević   +4 more
wiley   +1 more source

Enzymatic one-step ring contraction for quinolone biosynthesis. [PDF]

open access: yes, 2018
The 6,6-quinolone scaffolds on which viridicatin-type fungal alkaloids are built are frequently found in metabolites that display useful biological activities.
Champagne, Pier Alexandre   +7 more
core  

Did the French pregnancy pictogram change antiseizure medication use during pregnancy?

open access: yesEpilepsia, EarlyView.
Abstract Objective The aim of this study was to assess the impact of introducing a pregnancy pictogram on medication packaging on the prescription and dispensation of antiseizure medications and on the maternal and neonatal outcomes for women exposed to these medications.
Mélanie Araujo   +7 more
wiley   +1 more source

Nutritional Potential, Phytochemical Content, In Vivo Antioxidant, and Antanemic Potential of Musa paradisiaca Flower

open access: yesFood Chemistry International, EarlyView.
After collecting Musa paradisiaca leaves, some were dried and others were used to produce aqueous extracts. The extracts and powders were characterized and then administered to rats made anaemic by PHZ. After 14 days of administration of the two samples, the rats were euthanized and it was observed that after 9 days of treatment, the aqueous extract ...
Josée Rebeca Nombo   +8 more
wiley   +1 more source

Benzylisoquinoline Biosynthesis by Cultivated Plant Cells and Isolated Enzymes [PDF]

open access: yes, 1985
Amann, Manfred   +4 more
core   +1 more source

Fermentation‐Induced Modulation of Polyphenolic Contents and Medicinal Activities in Annona squamosa Seeds

open access: yesFood Chemistry International, EarlyView.
The study compared the medicinal activities of polyphenols from fermented and unfermented seeds of Annona squamosa. The polyphenols were extracted and subjected to standard analysis. The major phenolic components of the fermented polyphenols and the unfermented polyphenols were found to be 4‐hydroxybenzoic and 4‐hydroxyphenylacetic acid, respectively ...
Shola Hezekiah Awojide   +10 more
wiley   +1 more source

Application, Challenges, and Prospects of Non‐Thermal Processing Technologies for Seaweed Protein Extraction—A Review

open access: yesFood Chemistry International, EarlyView.
This review highlights non‐thermal extraction technologies for seaweed proteins, emphasizing their mechanisms, impacts on protein structure and functionality, and sustainability potential. Key limitations related to species dependence, extract complexity, and scale‐up are discussed to guide future industrial and biorefinery applications.
Rahat Mahmud   +3 more
wiley   +1 more source

Tropane alkaloids in food [PDF]

open access: yes
A large number of wild and cultured plants produce secondary metabolites that are toxic to humans and animals. Through accidental or intentional mixing of these plants with normal food and feed the consumers of these products will be exposed to the ...
Adamse, P., Egmond, H.P., van
core   +1 more source

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