3-methoxy-1-methyl-1H-pyrazol-5-amine → 2-[[5-cyano-2-[(3-methoxy-1-methylpyrazol-5-yl)amino]-4-pyridinyl]amino]-N-methylbenzamide

関与物質

反応条件

反応手順

2-(2-chloro-5-cyanopyridin-4-ylamino)-N-methylbenzamide (100 mg, 0.35 mmol), Palladium(II) acetate (6.26 mg, 0.03 mmol), [Reactants], 9,9-Dimethyl-4,5-bis(diphenylphosphino)xanthene (24.22 mg, 0.04 mmol) and Cesium carbonate (136 mg, 0.42 mmol) were suspended in dioxane (3 mL) into a test tube. The reaction was purged for 5 mins with nitrogen and then heated to 90 °C for 18 hours with stirring. The reaction was cooled to cooled to RT. The crude product was purified by ion exchange chromatography, using an SCX column. The desired crude product was eluted from the column using 7M NH3/MeOH and fractions were evaporated to dryness to afford crude product .The crude product was purified by preparative HPLC (Waters XBridge Prep C18 OBD column, 5µ silica, 19 mm diameter, 100 mm length), using decreasingly polar mixtures of water (containing 1% NH3) and MeCN as eluents. Fractions containing the desired compound were evaporated to dryness to afford 2-(5-cyano-2-(3-methoxy-1-methyl-1H-pyrazol-5-ylamino)pyridin-4-ylamino)-N-methylbenzamide (72.0 mg, 54.7 %) as a beige solid.

情報源と証拠