Potassium Carbonate → HCID 178454344, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of di-tert-butyl (4-iodofuro[2,3-c]pyridin-7-yl)imidodicarbonate (1.2 g, 2.6 mmol), [1-(trans-4-{[tert-butyl(dimethyl)silyl]oxy}cyclohexyl)-1H-pyrazol-4-yl]boronic acid (1.06 g, 3.26 mmol), 1,1′-bis(diphenylphosphino)ferrocenepalladium (II) dichloride dichloromethane complex (213 mg, 0.261 mmol) and potassium carbonate (0.901 g, 6.52 mmol) in 1,4-dioxane (10 mL) and water (5 mL) was degassed with nitrogen for 10 min. The mixture was then heated to 70° C. for 20 min. Ethyl acetate was added, and the layers separated. The combined organic fractions were dried over sodium sulfate, filtered, and concentrated. Purification of the residue by ISCO chromatography (0% to 35% EtOAc:heptane) afforded 1.15 g (72%) of the title compound as an off-white solid. 1H NMR (400 MHz, CDCl3): δ 8.38 (s, 1 H), 7.89 (s, 1 H), 7.82-7.77 (m, 2 H), 7.02 (d, J=2.0 Hz, 1 H), 4.21 (tdd, J=3.9, 7.7, 11.5 Hz, 1 H), 3.82-3.66 (m, 1 H), 2.33-2.17 (m, 2 H), 2.09-2.01 (m, 2 H), 2.00-1.87 (m, 2 H), 1.59-1.49 (m, 2 H), 1.40 (s, 18 H), 0.91 (s, 9 H), 0.09 (s, 6 H); MS (ESI): 613.46 [M+H]+.

Provenance & Evidence