title: Improved binding affinity and interesting selectivities of aminopyrimidine-bearing carbohydrate receptors in comparison with their aminopyridine analogues.
abstract: Due to the problems with the exact prediction of the binding properties of an artificial carbohydrate receptor, the identification of characteristic structural features, having the ability to influence the binding properties in a predictable way, is of high importance. The purpose of our investigation was to examine whether the previously observed higher affinity of 2-aminopyrimidine-bearing carbohydrate receptors in comparison with aminopyridine substituted analogues represents a general tendency of aminopyrimidine-bearing compounds. Systematic binding studies on new compounds consisting of 2-aminopyrimidine groups confirmed such a tendency and allowed the identification of interesting structure-activity relationships. Receptors having different symmetries showed systematic preferences for specific glycosides, which are remarkable for such simple receptor systems. Particularly suitable receptor architectures for the recognition of selected glycosides were identified and represent a valuable base for further developments in this field.
authors.affiliation: Institut für Organische Chemie, Technische Universität Bergakademie Freiberg, Leipziger Strasse 29, 09596 Freiberg, Germany. monika.mazik@chemie.tu-freiberg.de.
authors.forename: Jan
authors.initials: J
authors.lastname: Lippe
authors.forename: Wilhelm
authors.initials: W
authors.lastname: Seichter
authors.forename: Monika
authors.initials: M
authors.lastname: Mazik
mesh_terms: D000631:Aminopyridines / Q000737:chemistry* / Q000378:metabolism*; D001665:Binding Sites; D002241:Carbohydrates / Q000737:chemistry*; D006860:Hydrogen Bonding; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D011485:Protein Binding; D011956:Receptors, Cell Surface / Q000737:chemistry / Q000378:metabolism*
chemical_list: D000631:Aminopyridines; D002241:Carbohydrates; D011956:Receptors, Cell Surface