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| Peptide | Cyclic peptide | Linear peptide precursor | M : Da |
|---|---|---|---|
| 1 | (YYTYT-Tz4)cy22 | Fmoc-Pra-YYTYT-Az4 | 8.28 : 1 |
| 4 | (NYRWLTz4)cy22,23 | Fmoc-Pra-NYRWL-Az4 | 43.8 : 0 |
| 5 | (RYKHYTz4)cy22,24 | Fmoc-Pra-RYKHY-Az4 | 40.9 : 0 |
| 6 | (YKYYR-Tz4)cy22,24 | Fmoc-Pra-YKYYR-Az4 | 52.3 : 0 |
| 7 | (DARNI-Tz4)cy22 | Fmoc-Pra-DARNI-Az4 | 6.52 : 1 |
| 8 | (RRATS-Tz4)cy22,25 | Fmoc-Pra-RRATS-Az4 | 5.71 : 1 |
Based on HPLC of crude sample of the cyclized product.
