Abstract
The enantiomeric and diastereoisomeric dipeptides Gly- R, S-Val, Gly- R, S-Leu, Gly- R, S-Phe, R, S-Leu-Gly, R, S-Leu- R, S-Ala and R, S-Leu- R, S-Phe have been separated by RP-HPLC methods when coordinated in ternary Co(III) complexes [Co( R, R-benzet)(peptidato)] 2+ [benzet = N-benzyl- N′-(2-picolyl-1,2-diaminocyclohexane)], on Amex Prepsil columns under a variety of conditions. A method is illustrated for the recovery of the pure peptides from the separated diastereoisomers. The method appears to be applicable for dipeptides, in general.
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