反应详情

A solution of 2-(2-(2-(2,5-dichloropyrimidin-4-yl)ethyl)phenyl)propanamide A30 (0.10 g, 0.31 mmol) and tert-butyl 4-amino-1H-pyrazole-1-carboxylate (0.17 g, 0.93 mmol) was heated in MeOH:water (10:1, 5 mL) at 90° C. for 18 hours. The solvents were removed in vacuo and the crude residue was purified by silica gel column chromatography (Combiflash Rf, 0-15% MeOH in DCM). The purified fractions were combined, the solvent was removed in vacuo and the solid was sonicated in cyclohexane and filtered. The residue was dried in vacuo to give the title compound 35 as a light yellow solid (0.060 g, 52%). 1H NMR (300 MHz, d6-DMSO) δ 1.34 (d, J=7.04 Hz, 3H), 2.92-3.11 (m, 4H), 3.86 (q, J=7.04 Hz, 1H), 6.85 (brs, 1H), 7.13-7.25 (m, 4H), 7.36-7.44 (m, 1H), 7.57-87 (m, 2H), 8.37 (s, 1H), 9.63 (s, 1H). LCMS-C: rt 4.72 min; m/z 371 [M+H]+.

1. customThe solvents were removed in vacuo
2. customthe crude residue was purified by silica gel column chromatography (Combiflash Rf, 0-15% MeOH in DCM)
3. customthe solvent was removed in vacuo
4. customthe solid was sonicated in cyclohexane
5. filtrationfiltered
6. customThe residue was dried in vacuo