反应详情

温度

20 °C

Methanesulphonyl chloride (0.042 mL, 0.55 mmol) was added at 0° C. to a solution of N-(1-tert-butyl-3-(3-methoxyphenethyl)-1H-pyrazol-5-yl)-4-(piperazin-1-yl)benzamide (0.231 g, 0.5 mmol) and N,N-diethylethanamine (0.077 mL, 0.55 mmol) in DCM (4 mL). The resulting solution was stirred at 20° C. for 1 h. The reaction mixture was diluted with saturated sodium hydrogen carbonate (10 ml) filtered and the solid washed with DCM (2×10 ml). The organic layers were combined and washed with water (20 ml) and saturated brine (20 ml). The organics were dried (MgSO4), filtered and evaporated to afford crude product. The crude product was purified by silica column chromatography, eluting with a gradient of 0-5% MeOH in DCM. Pure fractions were evaporated to dryness to afford N-(1-tert-butyl-3-(3-methoxyphenethyl)-1H-pyrazol-5-yl)-4-(4-(methylsulfonyl)piperazin-1-yl)benzamide (0.255 g, 94%) as a white solid. MS: m/z=540 (MH+).

1. filtrationfiltered
2. washthe solid washed with DCM (2×10 ml)
3. washwashed with water (20 ml) and saturated brine (20 ml)
4. dry with materialThe organics were dried (MgSO4)
5. filtrationfiltered
6. customevaporated
7. customto afford crude product
8. customThe crude product was purified by silica column chromatography
9. washeluting with a gradient of 0-5% MeOH in DCM
10. customPure fractions were evaporated to dryness