Results 41 to 50 of about 49,957 (191)
European Journal of Organic Chemistry, EarlyView.Near‐infrared fluorescent pH indicators based on perylenediimide were constructed in a modular receptor–spacer–fluorophore–spacer–receptor format with heterocyclic amino moieties at the bay positions. Counterintuitively, the dibrominated intermediate with two heavy atoms is more emissive than the heterocyclic compounds.
Luke Camenzuli +4 more
wiley +1 more source
Synthesis and Biological Activity of Novel Polyazaheterocyclic Derivatives of Quinine
MoleculesA synthetic methodology of the CuAAC “click” approach was exploited for the construction of 1,2-azolyltriazole quinine derivatives by the reaction of O-propargylquinine with azidomethyl-1,2-azoles in methanol.
Gulim K. Mukusheva +10 more
doaj +1 more source
Demethylation of Quinine Using Anhydrous Aluminium Trichloride
Journal of Mathematical and Fundamental Sciences, 2013 Quinine is a natural alkaloid having a methoxy group bound to quinoline ring and an allyl group bound to quinuclidine ring. Demethylation of quinine applying strong acid such as HBr or HI at high temperature was unsuccessful. The aim of this research was
Aiyi Asnawi +3 more
doaj +1 more source
Food Chemistry International, EarlyView.Unpleasant bitterness associated with bioactive components of S. anguivi, a vegetal fruit with many therapeutics functionalities, was attenuated on interaction with dietary bivalent metallic ions with concomitant augmentation of antioxidant activity. ABSTRACT Bioactive components of S.
Daramola Bode
wiley +1 more source
Quinine levels in patients with uncomplicated falciparum malaria in the Amazon region of Brazil
Brazilian Journal of Infectious DiseasesWe examined the plasmatic concentrations of quinine in patients with uncomplicated falciparum malaria in an endemic area of the Amazon region in Brazil in a prospective clinical trial, in which a standard three-day course of oral quinine plus doxycycline
José Luiz Fernandes Vieira +3 more
doaj +1 more source
Des «nanotransporteurs» d’ADN : Repousser les limites des Nanomédicaments pour traiter le cancer
Journal de la Faculté de Médecine d'Oran, 2022 Une nouvelle classe de transporteurs de médicaments fabriqués avec de l’ADN, qui pourrait améliorer de façon importante le traitement des cancers et d’autres maladies, a été conçue et validée par une équipe de chercheur de l’université de Montréal ...
Djawad Chikh
doaj +1 more source
Food Safety and Health, EarlyView.In this review, we critically summarized the application of natural polysaccharides (NPs) for the treatment of IBD. This approach combines, in a unique way (right), the basic structure–activity relationships of NPs from different origins (left) with their multipronged mode of action, which involves modulation of the gut microbiota and other ...
Felix Danso +3 more
wiley +1 more source
Agronomy, 2022 When direct flow velocity measurements are not feasible, the use of tracers can be a valuable tool. In the present study, both laboratory and field experiments were conducted to evaluate the applicability of quinine as a fluorescent tracer for estimating
Soheil Zehsaz +4 more
doaj +1 more source