反应详情

3-(4-(7-(1-Methyl-1H-pyrazol-4-yl)imidazo[1,2-c]pyrimidin-5-yl)-1H-pyrazol-1-yl)pentanediamide (0.047 g, 0.12 mmol) was partially dissolved in DMF (0.3 mL) and DCM (0.5 mL) and triethylamine (0.08 g, 0.79 mmol) was added. 2,2,2-trichloroacetyl chloride (0.08 g, 0.44 mmol) was added at 0° C., and the reaction was stirred for 1 hour. Additional reagents (40 mg Et3N and 30 mg acid chloride) were added and the reaction was complete. The reaction was concentrated and pumped to dryness. A minimum amount of water was added (1.5 mL) to dissolve the crude product. Excess sodium chloride was added to the aqueous layer and this mixture was extracted with EtOAc (10×10 mL) to recover the desired product. The organic phase was dried using MgSO4 and concentrated to provide 3-(4-(7-(1-methyl-1H-pyrazol-4-yl)imidazo[1,2-c]pyrimidin-5-yl)-1H-pyrazol-1-yl)pentanedinitrile (42 mg, 98% yield). MS (apci) m/z=358.1 (M+H). 1H NMR (d6-DMSO) δ 9.12 (s, 1H), 8.59 (s, 1H), 8.41 (s, 1H), 8.25 (s, 1H), 8.17 (s, 1H), 7.78 (s, 1H), 7.76 (s, 1H), 5.30-5.29 (m, 1H), 3.91 (s, 3H), 1.22-1.10 (m, 4H).

1. concentrationThe reaction was concentrated
2. additionA minimum amount of water was added (1.5 mL)
3. dissolutionto dissolve the crude product
4. additionExcess sodium chloride was added to the aqueous layer
5. extractionthis mixture was extracted with EtOAc (10×10 mL)
6. customto recover the desired product
7. customThe organic phase was dried
8. concentrationconcentrated