Molecular receptors for monosaccharides: di(pyridyl)naphthyridine and di(quinolyl)naphthyridine

The recognition capabilities of two molecular receptors toward monosaccharides were evaluated. The binding processes were studied by UV-vis, fluorescence and 1H NMR spectrophotometric titrations as well as electrospray ionization mass spectroscopy. The binding strength between the two receptors and examined monosaccharides was comparable to that for many other hydrogen-bonding host molecules previously reported.