7-Chloro-2-iodothieno(3,2-b)pyridine → 6-(3-fluoro-4-(2-iodothieno[3,2-b]pyridin-7-yloxy)phenyl)-1-phenyl-2,3-dihydroimidazo[1,2-a]pyrimidin-5(1H)-one

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Reaction Steps

A mixture of 6-(3-fluoro-4-hydroxyphenyl)-1-phenyl-2,3-dihydroimidazo[1,2-a]pyrimidin-5(1H)-one (0.078 g, 0.186 mmol), 7-chloro-2-iodothieno[3,2-b]pyridine (0.050 g, 0.169 mmol; prepared according to the procedure of Ragan, J. A. Org. Proc. Res. 2003, 7, 676) and DMAP (0.021 g, 0.169 mmol) in bromobenzene (1.5 mL) under nitrogen was stirred at 150° C. for two days. The reaction was concentrated in vacuo to remove as much bromobenzene as possible and then purified directly by flash column chromatography, eluting with 30:1 CH2Cl2/MeOH. The product was obtained (35 mg; 36%) as a yellow solid. LRMS (APCI pos) m/e 583 (M+1).

Provenance & Evidence