Sodium bis(trimethylsilyl)amide → 4-(5-(1-(Tert-butyldimethylsilyloxy)-2-methylpropan-2-yl)-2-(5-fluoro-6-methoxypyridin-3-ylamino)pyridin-3-yl)-6-methyl-1,3,5-triazin-2-amine

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Reaction Conditions

Reaction Steps

Sodium bis(trimethylsilyl)amide (1.0M in THF) (Aldrich, St. Louis, Mo.; 0.447 mL, 0.447 mmol) was added to an orange-brown solution of 4-(5-(1-(tert-butyldimethylsilyloxy)-2-methylpropan-2-yl)-2-fluoropyridin-3-yl)-6-methyl-1,3,5-triazin-2-amine (73.0 mg, 0.186 mmol) and 5-fluoro-6-methoxypyridin-3-amine (Anichem, North Brunswick, N.J.; 31.8 mg, 0.224 mmol) in THF (2.0 mL) at 0° C., and the resulting brown solution was stirred at 0° C. for 1 h. Excess sodium bis(trimethylsilyl)amide was carefully quenched with saturated aqueous NH4Cl (5 mL), and the resulting mixture was partitioned between CH2Cl2 (50 mL) and half-saturated aqueous NH4Cl (30 mL). The aqueous layer was extracted with CH2Cl2 (30 mL), and the combined organic extracts were dried over sodium sulfate, filtered, and concentrated in vacuo. Chromatographic purification of the residue (silica gel, 0 to 70% EtOAc/hexanes) furnished 4-(5-(1-(tert-butyldimethylsilyloxy)-2-methylpropan-2-yl)-2-(5-fluoro-6-methoxypyridin-3-ylamino)pyridin-3-yl)-6-methyl-1,3,5-triazin-2-amine (88.8 mg, 0.173 mmol, 93% yield) as a yellow-orange solid. m/z (ESI, +ve) 514.0 (M+H)+.

Provenance & Evidence