Separation of amino acids, amino-acid-based monomer, and process for the preparation thereof, as well as polymer material and process for the preparation thereof
First Claim
1. A method for preparing a molecular print polymer for adsorbing an enantiomer of a chiral nonderivatized amino acid, comprising:
- (A) preparing a diastereomeric complex between a monomer unit comprising an amino acid moiety, an enantiomer of a chiral nonderivatized amino acid, and a divalent metallic ion capable of forming a complex between said monomer unit and said enantiomer;
(B) polymerizing the monomer moieties of said complex in the presence of a crosslinking agent; and
(C) removing said amino acid from said polymerized complex, thereby obtaining said molecular print polymer.
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Abstract
A process for separating a selected amino acid (enantiomer) from a mixture of different compounds including other amino acids is disclosed, in which process the mixture is contacted with a polymer material which is composed of cross-linked, amino-acid-based monomer units, said polymer material containing a molecular print of the selected amino acid. In the molecular print there is also bound a diastereomeric complex between the selected amino acid (enantiomer), a divalent metallic ion and the amino-acid-based monomer unit. Also the amino-acid-based monomer unit and a process for preparation thereof, as well as a polymer material composed of the amino-acid-based monomer unit and a process for the preparation thereof are disclosed.
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Citations
19 Claims
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1. A method for preparing a molecular print polymer for adsorbing an enantiomer of a chiral nonderivatized amino acid, comprising:
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(A) preparing a diastereomeric complex between a monomer unit comprising an amino acid moiety, an enantiomer of a chiral nonderivatized amino acid, and a divalent metallic ion capable of forming a complex between said monomer unit and said enantiomer; (B) polymerizing the monomer moieties of said complex in the presence of a crosslinking agent; and (C) removing said amino acid from said polymerized complex, thereby obtaining said molecular print polymer. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A molecular print polymer comprising:
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(A) a crosslinked polymerized monomer comprising an amino acid moiety; (B) a divalent metallic ion capable of forming a complex between said amino acid moiety of said monomer and an enantiomer of a chiral nonderivatized amino acid; wherein said polymer comprises affinity seats for said enantiomer, formed when said monomer is polymerized and crosslinked as a complex of said enantiomer and said divalent metallic ion. - View Dependent Claims (8, 9, 10, 11)
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12. A process for separating an enantiomer of a chiral nonderivatized amino acid from a mixture thereof, comprising:
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(A) contacting a mixture comprising an enantiomer of a chiral nonderivatized amino acid with a molecular print polymer comprising; (1) a crosslinked polymerized monomer comprising an amino acid moiety; (2) a divalent metallic ion capable of forming a complex between said amino acid moiety of said monomer and an enantiomer of a chiral nonderivatized amino acid; wherein said polymer comprises affinity seats for said enantiomer, formed when said monomer is polymerized and crosslinked as a complex of said enantiomer and said divalent metallic ion; wherein said contacting occurs under conditions sufficient for said enantiomer to form a complex with said divalent metallic ion of said polymer; and (B) removing the enantiomer depleted mixture from contact with the polymer. - View Dependent Claims (13, 14, 15, 16, 17)
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18. An amino acid-based monomer selected from the group consisting of N-methacrylamidomethyl-L-proline and N-methacrylamidomethyl-D-proline.
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19. A method for preparing N-methacrylamidomethyl-L-proline and N-methacrylamidomethyl-D-proline, comprising condensing L-proline or D-proline, formalin, and methacrylamide under alkaline conditions.
Specification