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2-[(6-Piperazin-1-ylpyrimidin-4-yl)amino]-1,3-thiazole-5-carbonitrile 12-3 (0.10 g, 0.35 mmol) and diisopropylethylamine (0.049 g, 0.38 mmol) were dissolved in DMF. After cooling to 0° C., a DMF solution of 4-(bromoacetyl)morpholine 12-4 (0.08 g, 0.38 mmol) was added slowly via addition funnel. The product was purified on a C18 preparative LC column and isolated via lyophilization. Hi-Res MS: calc: 415.1655 found: 415.1663. 1H-NMR (CD3OD): 8.49 ppm (s, 1H); 8.03 ppm (s, 1H); 6.27 ppm (s, 1H); 4.34 ppm (s, 2H); 3.70 ppm (m, 4H); 3.65 ppm (m, 4H); 3.42 ppm (t, 2H); 3.33 ppm (m, 6H).

1. customThe product was purified on a C18 preparative LC column
2. customisolated via lyophilization