Water → N-(4-(4-(1-methyl-3-(trifluoromethyl)-1H-pyrazol-4-yl)-5-(1-((2-(trimethylsilyl)ethoxy)methyl)-1H-imidazol-2-yl)thiazol-2-yl)pyridin-2-yl)acetamide

Participants

Reaction Steps

N-(4-(4-bromo-5-(1-((2-(trimethylsilyl)ethoxy)methyl)-1H-imidazol-2-yl)thiazol-2-yl)pyridin-2-yl)acetamide (70.0 mg, 0.120 mmol), 1-methyl-3-trifluoromethyl-1H-pyrazole-4-boronic acid pinacol ester (0.0708 g, 0.241 mmol), [1,1′-bis(diphenylphosphino)ferrocene]palladium(II)dichloride (4.95 mg, 0.00602 mmol) and sodium carbonate (38.3 mg, 0.361 mmol) in DME (1.2 mL) was degassed with argon. Water (0.5 mL) was added to the above mixture. The mixture was irradiated in microwave at 125° C. for 30 min. At that time, LCMS showed the desired product. Reaction mixture was filtered, the filtrate was evaporated to dryness, dissolved in DCM (1.20 mL) and treated with TFA (1.20 mL). This mixture was stirred at room temperature overnight. At that time, LCMS indicated formation of the desired product. The mixture was evaporated to dryness in vacuo, the residue was taken up by DMSO and purified using preparative HPLC to give product as yellow powder (16.3 mg, 31.2%). LCMS: (AA) ES+, 434, 435. 1H NMR (400 MHz, d4-methanol) δ: 8.67 (br, 1H) 8.38 (dd, 1H) 7.87 (s, 1H) 7.63 (dd, 1H) 7.14 (d, 2H) 3.98 (s, 3H) 2.19 (s 3H).

Provenance & Evidence