Patent ID: 7205401

Claim:
A composition for selectively binding an amine or amino acid target enantiomer over its counter-enantiomer, comprising: a solid support; an optically active ligand tethered to or coated on the solid support, said ligand having the structure: where B and B′ are independently bulky groups configured to substantially allow the target enantiomer to bind to the composition, said B and B′ being further configured to substantially sterically hinder the counter-enantiomer from binding to the composition; and M is saturated —C2H3— or saturated —C2H30C2H4—when M is tethered to the solid support, or M is saturated —C2H4—0r saturated —C2H40C2H4— when M is coated on the solid support; and a hydrophobic organic solvent coating coated on the solid support.