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| Base (25% in DMF) | t 1/2 a (min) |
|---|---|
| Piperidine | 2.0 |
| 2-Me-piperidine | 3.0 |
| 3-Me-piperidine | 1.9 |
| 4-Me-piperidine | 2.0 |
| 4-Me-piperazine | 7.8 |
Fmoc-Ile CTC-resin was placed in a glass cuvette and the deprotection mixture was added. The UV absorbance at 301 nm was determined every 2 min.
