Sodium hydride → 2-Phenyl-ethanesulfonic acid {6-[2-(pyrimidin-2-yloxy)-ethoxy]-5-p-tolyl-pyrimidin-4-yl}-amide

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Reaction Conditions

Reaction Steps

To sodium hydride (50 mg, 60% in mineral oil) was added THF (25 ml) followed by 2-phenyl-ethanesulfonic acid [6-(2-hydroxy-ethoxy)-5-p-tolyl-pyrimidin-4-yl]-amide (150 mg, Referential Example 1). The mixture was stirred for 1 h at rt before 2-chloro-pyrimidine (86 mg) was added. Stirring was continued for 17 h at 80° C. The solvent was evaporated and diethylether (20 ml) was added to the residue. The precipitate was filtered off and washed with diethylether, dissolved in water (20 ml) and acidified with citric acid and extracted twice with EA (50 ml). The organic phase was washed with water, dried over Na2SO4 and evaporated. The residue is suspended in 2-propanol (15 ml) and stirred at 70° C. for 10 min and cooled to 0° C. before the solid material is collected, washed with 2-propanol (2 ml) and dried under high vacuum to furnish 2-phenyl-ethanesulfonic acid {6-[2-(pyrimidin-2-yloxy)-ethoxy]-5-p-tolyl-pyrimidin-4-yl}-amide (133 mg) as a white powder. LC-MS: tR=4.97 min, [M+1]+=492.34, [M−1]−=490.28.

Provenance & Evidence