Cesium carbonate → N-(3-(2-(6-(4-Ethylpiperazin-1-yl)pyridin-3-ylamino)thieno[3,2-d]pyrimidin-7-yl)phenyl)methanesulfonamide

Participants

Reaction Conditions

Reaction Steps

N-(3-(2-chlorothieno[3,2-d]pyrimidin-7-yl)phenyl)methanesulfonamide (20 mg, 0.059 mmol) was dissolved in dioxane (1 mL) and then cesium carbonate (58 mg, 0.18 mmol) and 6-(4-ethylpiperazin-1-yl)pyridin-3-amine (18 mg, 0.088 mmol) were added. After flowing nitrogen gas to the reaction mixture for 10 minutes, Pd(OAc)2 (1 mg, 0.1 mmol) and Xantphos (4 mg, 0.12 mmol) were added. The reaction mixture was stirred at 120° C. for 6 hours and filtered with celite. The filtrate was diluted with ethyl acetate and washed with brine. The organic layer was dried with magnesium sulfate and concentrated by filtering with celite. Purification by chromatography (5% methanol/dichloromethane) yielded the target compound (16 mg, 53% yield).

Provenance & Evidence