Sodium Carbonate → 4-{5-[4-(4-Methyl-piperazin-1-ylmethyl)-phenyl]-1H-pyrrolo[2,3-b]pyridin-3-yl}-phenol

Participants

Reaction Conditions

Reaction Steps

To a solution of 5-bromo-3-(1H-indol-5-yl)-1-tosyl-1H-pyrrolo[2,3-b]pyridine (0.220 g, 0.5 mmol) in CH3CN (2.5 mL) in a Personal Chemistry microwave reaction vial was added 1-Methyl-4-[4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-benzyl]-piperazine (0.20 g, 0.65 mmol), bis(triphenylphosphine)-palladium(II) dichloride (0.003 g, 0.005 mmol), and 1 M Na2CO3 (1 mL). The resulting mixture was de-gassed with Ar for 10 min, after which it was heated at 150° C. for 30 min in a Personal Chemistry Optimizer. The organic layer was separated, filtered, and concentrated in vacuo. The residue was dissolved in MeOH (3 mL) and acetone (2 mL), and 2 M NaOH (1.5 mL) was added. The resulting mixture was stirred at 65° C. for 30 min, after which it was partitioned between EtOAc and 1 M NaOH. The organic layer was separated, dried over MgSO4, filtered, and stripped to give a residue purified via preparatory HPLC to give the title compound as a white solid. 1H NMR (DMSO-d6, 300 MHz): δ 11.78 (s, 1H), 11.03 (s, 1H), 8.51 (d, J=2.1 Hz, 1H), 8.36 (d, J=1.8 Hz, 1H), 7.86 (s, 1H), 7.72 (d, J=2.4 Hz, 1H), 7.45 (s, 2H), 7.32 (m, 1H), 6.92 (s, 2H), 6.45 (m, 1H), 3.85 (s, 6H), 3.70 (s, 3H); HPLC retention time: 2.04 minutes; MS ESI (m/z): 399 (M+1)+, calc. 398.51.

Provenance & Evidence