Cesium carbonate → 4-[1-(4-methoxybenzyl)-1H-1,2,3-triazol-4-yl]-N-[3-methyl-5-(1,3-thiazol-5-yl)phenyl]pyrimidin-2-amine

Participants

Reaction Conditions

Reaction Steps

To a solution of 3-methyl-5-(1,3-thiazol-5-yl)aniline (63 mg, 0.33 mmol) and the product of Step 1 (100 mg, 0.33 mmol) in degassed 1,4-dioxane (1.3 mL) were added Pd(OAc)2 (7.4 mg, 0.033 mmol), Xantphos (29 mg, 0.050 mmol) and Cs2CO3 (216 mg, 0.66 mmol) and the reaction was heated to 100° C. for 30 minutes. After cooling, the reaction was partitioned between EtOAc (10 mL) and saturated aqueous sodium bicarbonate (10 mL). The layers were separated, and the aqueous phase was extracted with EtOAc (10 mL). The combined organic phases were washed with saturated aqueous sodium chloride (10 mL), dried over anhydrous MgSO4, filtered, and concentrated under reduced pressure. Purification on silica (30-70% ethyl acetate in hexanes) afforded 4-[1-(4-methoxybenzyl)-1H-1,2,3-triazol-4-yl]-N-[3-methyl-5-(1,3-thiazol-5-yl)phenyl]pyrimidin-2-amine (50 mg, 33%) as a colorless foam. MS ESI: [M+H]+ m/z 456.1.

Provenance & Evidence