Tuning selectivity in macrotricyclic carbohydrate receptors; CH ? N mutations in aromatic spacersElectronic supplementary information (ESI) available: experimental details for the synthesis of receptors 3 and 4, binding studies of receptors 3 and 4 with monosaccharide 2, and extraction experiments. See http://www.rsc.org/suppdata/ob/b3/b315447e/

Abstract

Dipicolinoyl spacer groups are used to control the conformational and H-bonding properties of tricyclic carbohydrate receptors 3 and 4. Binding selectivities are changed in relation to all-isophthaloyl system 1b.