Solid phase peptide synthesis using a polyacrylic support in aqueous solution
First Claim
1. A method for solid phase peptide synthesis, the method comprising attaching a first amino acid residue selected from the twenty naturally occurring L-alpha amino acids to a hydrophilic polyacrylic resin, coupling one or more further amino acid residues of the twenty naturally occurring L-alpha amino acids to form a peptide and detaching the peptide from the resin, characterized in that the coupling of the said amino acid residues to the polyacrylic resin includes steps of washing the resin in water, one or more aqueous solutions, or a combination of the foregoing.
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Abstract
This invention relates to solid phase peptide synthesis.
Solid phase peptide synthesis is accomplished on polyacrylic resins (such as those described in EP 0 079 812 and EP 0 081 408 which correspond to U.S. Pat. Nos. 4,436,874 and 4,439,545 respectively) by a method which includes in the coupling protocol steps of washing the resin in water and/or aqueous solution(s).
9 Citations
6 Claims
- 1. A method for solid phase peptide synthesis, the method comprising attaching a first amino acid residue selected from the twenty naturally occurring L-alpha amino acids to a hydrophilic polyacrylic resin, coupling one or more further amino acid residues of the twenty naturally occurring L-alpha amino acids to form a peptide and detaching the peptide from the resin, characterized in that the coupling of the said amino acid residues to the polyacrylic resin includes steps of washing the resin in water, one or more aqueous solutions, or a combination of the foregoing.
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6. Deprotection:
- piperidine or diethylamine in water;
3. Washing;
isopropanol, twice, 2 mn each;
distilled water--4 to 6 times, 2 mn each;4. Optionally washing;
DMF--once, 2 mn;5. Coupling;
symmetric anhydride, 3 times in excess in DMF, and6. Washing;
DMF twice, 2 mn each;
distilled water--6 times, 2 mn each.
- piperidine or diethylamine in water;
Specification