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Composition of crude products obtained from peptide resins VKDXYI after treatment with 20% piperidine in DMF at room temperature
| Asp(OR) R | Aspartimide per cycle for X = Asna , b (%) | d‐Asp for X = Asn (%) | Aspartimide per cycle for X = Arga , b (%) | d‐Asp for X = Arg (%) |
|---|---|---|---|---|
| tBu | 1.65 | 9.1 | 1.24 | 25.1 |
| Mpe | 0.49 | 4.2 | 0.4 | 11.0 |
| Epe | 0.19 | 2.2 | 0.13 | 3.1 |
| Bno | 0.06 | 0.9 | 0.06 | 1.4 |
Calculation by first order decay.
Based on 10‐min treatments 57.
