Podand- and crown-types of newchiral receptors, characterized by a chiral polyether skeleton and an amide junction, were derivedfromnaturallyoccurringmonensinionophore. Their chiral recognition ability was investigated by ion-selective electrode and 1H-NMR spectroscopic methods. Several podand-type monensin amides formed 1:1 complexes with chiral amine salts and exhibited excellent enantiomer