Abstract
Chiral 18-crown-6 incorporating ad-mannopyranoside unit displays noticeable enantioselectivity in the recognition of amino acids and their sodium and potassium salts in transport experiments across a liquid membrane containing the carrier.d-phenylalanine andd-phenylglycine were transported faster than their correspondingl-enantiomers, whereas the enantioselectivity was reversed with tryptophan.
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