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The macrocyclic glycopeptide chiral selectors are natural molecules produced by bacterial fermentation. Purified and bonded to silica particles, they make very useful chiral stationary phases (CSP) with a broad spectrum of applicability in enantiomeric separation. The macrocyclic glycopeptide CSPs are multimodal, the same column being able to work in normal phase mode with apolar mobile phase, in...
Cyclofructans are cyclic oligosaccharides consisting of β-2,1 linked d-fructofuranosefructofuranose units. Although known for more than 20 years, they were only recently proposed as powerful chiral selectors after alkylation or aryl derivatization. The mechanism of chiral recognition of derived cyclofructan cyclofructose is investigated. A structural comparison of the 18-crown-6 ether and the cyclofructans...
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