Figure 3: HPLC spectra of peptide cyclizations.

(a) Purified cyclic peptide with D-Thr. (b) Crude cyclization mixture of the one with L-allo-Thr. (c) Co-elution of a and b.
(a) Purified cyclic peptide with D-Thr. (b) Crude cyclization mixture of the one with L-allo-Thr. (c) Co-elution of a and b.