反应详情

Title compound 20 was prepared by the methods used in the preparation of compound 17, except that 2-chloromethyl benzimidazole was used in the place of m-cyano-benzyl bromide. 1H-NMR (400 MHz, CDCl3-CD3OD 10:1) δ 7.67 (d, J=3.0 Hz, 1H), 7.65-7.56 (m, 2 H), 7.47 (d, J=3.3 Hz, 2 H), 7.46 (d, J=3.3 Hz, 1 H), 7.37-7.40 (m, 2 H), 5.52 (s, 3 H), 5.23 (s, 2 H), 3.51 (d, J=9.6 Hz, 1 H), 3.36 (m, 1 H), 2.87-2.92 (m, 2 H), 2.64-2.72 (m, 1 H), 2.09 (m, 1 H), 1.76 (m, 1 H), 1.52-1.64 (m, 2 H). MS (ES) [m+H] calc'd for C25H26N7O2, 456.2; found 456.2.