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Synthesis of Ketoprofen-peptide conjugates. (a) Representative example of the synthetic procedure, showing the separation of the epimers l-VEVE-(S)-Ket and l-VEVE-(R)-Ket via HPLC purification. (b) and (c) HPLC chromatograms of the separated epimers of the l-VEVE and d-VEVE Ketoprofen conjugates, respectively.
