Synthesis of thiatriazines having hetero atoms different positions has been reported in the literature. The cycloaddition of diazoazoles with acylisothiocyanates has been found to result in the formation of a 1,2,3,5thiatriazine ring. Recently the synthetic applications of Nphenyl-S-chloroisothiocarbamoyl chloride have been investigated. Series of new heterocyclic compounds 2H-4-(pyrid-4yl)-5-arylidene / alkylidene-amino-6-phenylimino-5,6-dihydro-1,2,3,5-thiatriazine (8a-f) have been synthesized by the basification of 2H-4-(pyrid-4yl)-5arylidene / alkylideneamino-6-phenylimina-5,6dihydro-1,2,3,5-thiatriazine hydrochloride (7a-f). The later were synthesized by the interaction of 1-aryl / alkylidene-3-(pyrid-4y)dihydro formazan (5a-f) with N-phenyl-Schloroisothiocarbamoyl chloride. The synthesized compounds were further isomerised into 1 phenyl-4-(pyrid-4yl)-5-aryldene / alkyldene amino-6-thio-1,2,3,5tetrazines (9a-f) by using 5 % ethanolic sodium hydroxide. Compound (8) on benzalyation with excess 10 % sodium hydroxide and benzoyl chloride afforted corresponding benzoyl derivatives (10 a-f). The structures of newly synthesized compounds were confirmed on the basis of their elemental IR 1 H-NMR and mass spectral analysis. The title compounds were assayed for antioxidant activity compared with standard ascorbic acid and antifungal Activity.
Chitosan is naturally occurring, biodegradable, non-toxic, non-allergenic biopolysaccharide derived from chitin which turns viscous upon dissolution in mildly acidic medium. Artificially changed chitosan consolidating hydroxyl chromone was set up by responding 6-Hydroxy-4-oxo-4H-chromone-3-carbaldehyde with chitosan; it was found to have high specific and chelating proficiency towards transition metal ion at pH 1-8. Enhanced adsorption capacity and a strong affinity for Cu 2+ was observed as compared to Cd 2+ , Ni 2+ and Co 2+ at pH 4-6. Chitosan-hydroxyl-chromone was chemically synthesized and characterized by spectroscopic techniques. Potentiometric strategies affirmed the request of selectivity which was free of the physical form of chitosan-hydroxyl-chromone subsidiary. 1 H NMR outcomes recommended a level of substitution (DS) extending from 32.72 to 98.21%. Antimicrobial and antioxidant activity of chitosanhydroxyl-chromone within the series of synthesized compounds was evaluated. To improve the solubility of chitosan in water, we present a synthesis of chitosan-based chromone biopolymers and its applications in metal extractions.
Polyethylene glycol (PEG) is a polymer that is widely used as a carrier for drug delivery systems (DDS). A library of N-PEGylated quinoline derivatives of PEG molecular weight 200 was prepared rapidly after the activation of PEGs using maleic anhydride. Quinoline with a polymer backbone is essential as new material. PEG is a water-soluble nonionic polymer approved by food and drug organizations for medicine applications. Because of its nontoxic grapheme, it is widely utilized in numerous biochemical, cosmetic, pharmaceutical, and industrialized applications. The modern SwissADME is a web tool that stretches free admittance to a pool of hasty, yet solid, clarifying models for physicochemical properties, pharmacokinetics, and therapeutic science. The present facile synthetic strategy can be a practical approach for incorporating polymeric carriers conjugated with drug moieties, either in the backbone of the polymer or as a terminal and pendant group on the polymer chains.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.