Synthesis and determination of alkali metal binding selectivities of chiral macrocyclic bisamides derived from d-mannitol and l-threitol possessing 2,6-pyridinedicarboxamide subunits

Abstract Five chiral macrocyclic bisamides derived from d -mannitol and l -threitol, possessing C 2 symmetry, were obtained by a macrocyclization reaction under two different conditions (MeOH, 12 kbar, rt or MeONa/MeOH, 1 bar, rt). Their applications for alkali metal binding processes are studied using ESI-MS technique.