反应详情

(5-Bromo-1-methyl-1H-pyrazol-4-yl)(4,6-dichloropyrimidin-5-yl)methanone (C26) (1.14 g, 3.39 mmol) was combined with azetidine (98%, 0.212 mL, 3.08 mmol) and N,N-diisopropylethylamine (0.645 mL, 3.70 mmol) in acetonitrile (30 mL) at 0° C. The mixture was then allowed to warm to room temperature and stir for 18 hours. After removal of volatiles in vacuo, the residue was purificed via silica gel chromatography (Eluent: 100:1 ethyl acetate/methanol) to afford the product. Yield: 1.07 g, 3.00 mmol, 97%. LCMS m/z 356.2, 358.2, 360.2 (M+1). 1H NMR (400 MHz, CDCl3) δ 2.25-2.36 (m, 2H), 3.94 (s, 3H), 3.96-4.09 (br m, 4H), 7.85 (br s, 1H), 8.37 (s, 1H).

1. customAfter removal of volatiles in vacuo
2. customto afford the product