Sodium Carbonate → N-(3-fluoro-4-(1-(4-methoxybenzyl)-3-(3-(methylcarbamoyl)phenyl)-1H-pyrazolo[3,4-b]pyridin-4-yloxy)phenyl)-N-(4-fluorophenyl)cyclopropane-1,1-dicarboxamide

Participants

Reaction Steps

A stirred mixture of N-(3-fluoro-4-(3-iodo-1-(4-methoxybenzyl)-1H-pyrazolo[3,4-b]pyridin-4-yloxy)phenyl)-N-(4-fluorophenyl)cyclopropane-1,1-dicarboxamide (100 mg, 0.144 mmol; prepared as in Example 7, Step C), 3-(N-methylaminocarbonyl)phenyl boronic acid (51.47 mg, 0.288 mmol), Pd(PPh3)4 (8.31 mg, 0.0072 mmol) dissolved in 3:1 DME:aqueous 2N Na2CO3 (8 mL) was heated at 70° C. Reaction was monitored by TLC (90/10 CHCl3/MeOH). After stirring for 6 hours, the reaction mixture was partitioned between ethyl acetate (25 mL) and water (50 mL). The organic layer washed with brine, dried over sodium sulfate, filtered and evaporated to afford crude product. The crude was purified by silica gel column chromatography (Biotage 12M) eluting with 2% MeOH/DCM to give the product as pale orange glass (36 mg, 35%). LRMS (APCI pos) m/e 703.2 (M+H).

Provenance & Evidence