Stones, Duane published the artcileModular solid-phase synthetic approach to optimize structural and electronic properties of oligo-boronic acid receptors and sensors for the aqueous recognition of oligosaccharides, HPLC of Formula: 673456-16-1, the publication is Chemistry – A European Journal (2004), 10(1), 92-100, database is CAplus and MEDLINE.
This article describes the design and optimization of the first entirely modular, parallel solid-phase synthetic approach for the generation of well-defined polyamine oligo-boronic acid receptors and fluorescence sensors for complex oligosaccharides. The synthetic approach allows an effective building of the receptor polyamine backbone, followed by the controlled diversification of the amine benzylic side chains. This approach enabled the testing, in a modular fashion, of the effect of different aryl-boronic acid units substituted with un-encumbering para electron-withdrawing or electron-donating groups. The feasibility of this approach toward automated synthesis was also investigated with the assembly of a sub-library of receptors by means of the Irori MiniKan technol. Several sub-libraries of anthracene-capped sensors containing two or three aryl-boronic acids were synthesized, and their binding to a series of model disaccharides was examined in neutral aqueous media. The calculation of association constants by fluorescence titrations confirmed that subtle changes in the structures of the inter-amine spacers in the polyamine backbone can have a significant effect on the stability of the resulting complexes. Most importantly, this study led to the determination of the preferred electronic characteristics for the aryl-boronate units, and suggests that a new generation of receptors containing very electron-poor aryl-boronic acids could lead to a significant improvement of binding affinities.
Chemistry – A European Journal published new progress about 673456-16-1. 673456-16-1 belongs to alcohols-buliding-blocks, auxiliary class Fluoride,Bromide,Boronic acid and ester,Benzyl bromide,Benzene,Boronic Acids,Boronic acid and ester,, name is 2-(2-(Bromomethyl)-4-fluorophenyl)-5,5-dimethyl-1,3,2-dioxaborinane, and the molecular formula is C14H14N2O2, HPLC of Formula: 673456-16-1.
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