4-chloro-3-iodo-1-(4-methoxybenzyl)-1H-pyrazolo[3,4-b]pyridine → 2-(cyclohexylmethyl)-5-(3-fluoro-4-(3-iodo-1-(4-methoxybenzyl)-1H-pyrazolo[3,4-b]pyridin-4-yloxy)phenyl)-3-methylpyrimidin-4(3H)-one

Participants

Reaction Conditions

Reaction Steps

A mixture of 2-(cyclohexylmethyl)-5-(3-fluoro-4-hydroxyphenyl)-3-methylpyrimidin-4(3H)-one (0.026 g, 0.082 mmol), 4-chloro-3-iodo-1-(4-methoxybenzyl)-1H-pyrazolo[3,4-b]pyridine (0.033 g, 0.083 mmol; prepared according to the procedure of Example 84, Step D), and DMAP (0.020 g, 0.165 mmol) in bromobenzene (1 mL) under N2 was stirred at 150° C. for 4 days. The reaction was concentrated in vacuo to remove as much bromobenzene as possible and then purified directly by flash column chromatography, eluting with 20:1 CH2Cl2/MeOH. The desired product (0.048 g, 86%) was obtained as a pale yellow solid. LRMS (APCI pos) m/e 680 (M+1).

Provenance & Evidence