反应详情

The title compound was prepared in a similar manner as described for Example 1, from 5-[2,2-dimethyl-6-(1-methyl-1H-pyrazol-3-ylcarbamoyl)-2,3-dihydro-benzofuran-4-yloxy]-pyrazine-2-carboxylic acid methyl ester (396a) and azetidine. 1H NMR (400 MHz, CDCl3) δ 8.86 (d, J=1.26 Hz, 1 H) 8.35 (d, J=1.26 Hz, 1 H) 8.30 (s, 1 H) 7.23-7.32 (m, 1 H) 7.18 (d, J=1.26 Hz, 1 H) 7.12 (d, J=1.26 Hz, 1 H) 6.79 (d, J=2.27 Hz, 1 H) 4.70 (t, J=7.83 Hz, 2 H) 4.27 (t, J=7.83 Hz, 2 H) 3.81 (s, 3 H) 2.85 (s, 2 H) 2.31-2.46 (m, 2 H) 1.49 (s, 6 H); LCMS for C23H24N6O4 m/z 449.20 (M+H±); Anal. Calcd. for C23H24N6O4.0.18 AcOH: C, 61.09; H, 5.43; N, 18.30; Found: C, 61.21; H, 5.64; N, 18.31.