反应详情

The title compound was prepared by the method described in Example 1, except that (i) commercially available 3-pyridyl boronic acid was used instead of benzene boronic acid in Step A, and (ii) 3-(1-benzyl-1H-imidazol-2-yl)pyridine was used instead of 1-benzyl-2-phenyl-1H-imidazole in Step C. 3-(1-Benzyl-1H-imidazol-2-yl)pyridine was prepared by the method described in Example 8, Steps A and B except the commercially available 3-cyanopyridine was used instead of 3-fluorobenzonitrile; Rf 0.35 with 92.5:7.5 v/v dichloromethane-methanol; melting point 299° C.; 1H-NMR (400 MHz; DMSO-d6) δ 9.52 (s, 1H), 9.35 (s, 2H), 9.21 (s, 1H), 8.72-8.65 (m, 2H), 8.60-8.56 (m, 1H), 8.37-8.32 (m, 1H), 8.15 (s, 1H), 7.58-7.50 (m, 2H); LC/MS (ESI+) m/z 301.1 (M+1); H-PGDS FPBA IC50: 1.3 μM.