6-Hydroxymethyltriazolyl-6-deoxy-β-cyclodextrin: a highly water soluble and structurally well-defined β-cyclodextrin click cluster

Analysis of carbohydrates and glycoconjugates by matrix-assisted laser desorption/ionization mass spectrometry: An update for 2011-2012

This review is the seventh update of the original article published in 1999 on the application of MALDI mass spectrometry to the analysis of carbohydrates and glycoconjugates and brings coverage of the literature to the end of 2012. General aspects such as theory of the MALDI process, matrices, derivatization, MALDI imaging, and fragmentation are covered in the first part of the review and applications to various structural types constitute the remainder. The main groups of compound are oligo- and poly-saccharides, glycoproteins, glycolipids, glycosides, and biopharmaceuticals. Much of this material is presented in tabular form. Also discussed are medical and industrial applications of the technique, studies of enzyme reactions, and applications to chemical synthesis. © 2015 Wiley Periodicals, Inc. Mass Spec Rev 36:255-422, 2017.

6-Triazolyl-6-deoxy-β-cyclodextrin derivatives: synthesis, cellular toxicity, and phase-solubility study

Heptakis{6-(4-hydroxymethyl-1H-[1,2,3]triazol-1-yl)-6-deoxy}-β-cyclodextrin (HTβCD) and heptakis{6-(4-sulfonylmethyl-1H-[1,2,3]triazol-1-yl)-6-deoxy}-β-cyclodextrin (STβCD) were prepared using copper(I)-catalyzed azide-alkyne cycloaddition between 6-azido-6-deoxy-β-CD and one of two alkynes, propargyl alcohol, and sodium propargyl sulfonate, respectively. The structures of HTβCD and STβCD were characterized by NMR techniques. NMR interpretations and computer modeling suggested that the limited freedom of rotation of the triazole moieties keeps HTβCD and STβCD rigid and compact. Water solubility tests of HTβCD and STβCD showed that the minimum water solubility of HTβCD and STβCD is at least 20times higher than that of β-CD. MTT assay showed that HTβCD and STβCD did not influence the cell viability under 1mM. A phase-solubility study of prednisolone with the CD derivatives showed increased solubility of prednisolone in the presence of increasing concentrations of HTβCD and STβCD.