Sodium Carbonate → HCID 89935960, compound

Participants

Reaction Conditions

Reaction Steps

A solution of 5-bromo-2-[3-(1-methyl-1H-pyrazol-4-yl)-phenyl]-pyrimidine (intermediate 2, 160 mg, 0.50 mmol), 4-[4-(4,4,5,5-Tetramethyl-[1,3,2]dioxaborolan-2-yl)-pyrazol-1-yl]-piperidine-1-carboxylic acid tert-butyl ester (Combi-blocks, 287 mg, 0.76 mmol) and Na2CO3 (140 mg, 0.12 mmol) in dry Toluene: Ethanol (1:1) (5 mL) was purged with nitrogen for 30 min before the addition of Pd(PPh3)4 (60 mg, 0.05 mmol). The reaction mixture was then heated at 100° C. O/N and filtered through a celite pad. The filtrate was concentrated under reduced pressure to give the crude product. Purification by Flash chromatography on silica (hexane:EtOAc) afforded the title compound as a yellow solid (230 mg, 93%). 1H NMR (400 MHz, DMSO-d6): δ 9.15 (s, 2H), 8.53 (d, J=8.0 Hz, 2H), 8.25 (s, 1H), 8.21 (d, J=7.76 Hz, 1H), 8.14 (s, 1H), 7.91 (s, 1H), 7.91-7.48 (m, 10H), 4.45-4.44 (m, 1H), 4.07-4.04 (m, 2H), 3.88 (s, 3H), 2.12 (s, 2H), 2.70 (d, J=3.44 Hz, 1H), 2.08-2.05 (m, 2H), 1.86-1.76 (m, 2H), 1.42 (s, 9H). HPLC (Condition A): Rt 4.68 min (purity 87%). MS (ESI+): 486.2.

Provenance & Evidence