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Library derived from 20{1–2,1}.
| Entry | Piperazine | N-functionali zing Reagent | Product | Yield (%) |
|---|---|---|---|---|
| 1 | 20{1,1} | 24{3} | 37{1,1,3} | 58 |
| 2 | 20{1,1} | 24{21} | 38{1,1,21} | 54 |
| 3 | 20{1,1} | 24{32} | 40{1,1,32} | 68 |
| 4 | 20{1,1} | 24{9} | 38{2,1,9} | 96 |
| 5 | 20{2,1} | 24{13} | 38{2,1,13} | 93 |
| 6 | 20{2,1} | 24{18} | 38{2,1,18} | 92 |
| 7 | 20{2,1} | 24{20} | 39{2,1,20} | 97 |
| 8 | 20{2,1} | 24{35} | 40{2,1,35} | 60 |
| 9 | 20{2,1} | 24{25} | 39{2,1,25} | 68 |
| 10 | 20{2,1} | 24{29} | 39{2,1,29} | 53 |
| 11 | 20{2,1} | 24{30} | 39{2,1,30} | 54 |
