Potassium Carbonate → 4-(((6-Methoxy-2-(6-methylimidazo[1,2-b]pyridazin-2-yl)benzofuran-4-yl)oxy)methyl)-2-phenylthiazole

Participants

Reaction Conditions

Reaction Steps

In a 100 mL round-bottom flask, a suspension of 6-methoxy-2-(6-methylimidazo[1,2-b]pyridazin-2-yl)benzofuran-4-ol (Example 39B, 0.190 g, 0.643 mmol) and 4-(bromomethyl)-2-phenylthiazole (Table of bromides, 0.180 g, 0.708 mmol) in DMF (5 mL) was purged under vacuum and N2 for 10 min. The reaction was treated with potassium carbonate (0.24 g, 1.737 mmol) and stirred at 22° C. for 18 hours, then diluted with DCM and washed with water (1×), brine (1×). The organic layers were dried over anhydrous magnesium sulfate, filtered and concentrated. The residue was purified by silica gel chromatography (2.5×10 cm, 0% to 50% EtOAc in CH2Cl2) to give the impure title material (0.198 g, 66%). The solid was triturated in hot ethyl acetate to provide the pure title material (0.176 g). LC (Method A): 2.414 min. HRMS (ESI) calcd for C26H21N4O3S [M+H]+ m/z 469.1329, found 469.1379. 1H NMR (CDCl3, 400 MHz) δ ppm: 2.57 (s, 3H), 3.84 (s, 3H), 5.39 (s, 2H), 6.46 (d, J=1.96 Hz, 1H), 6.74 (broad d, 1H), 6.91 (d, J=9.1 Hz, 1H), 7.34 (s, 1H), 7.36 (s, 1H), 7.39-7.46 (m, 3H), 7.80 (d, J=9.1 Hz, 1H), 7.90-8.0 (m, 2H), 8.19 (s, 1H).

Provenance & Evidence