Lithium Hexamethyldisilazide → 6-Chloro-2-(4-(1,4-dimethylpiperidin-4-yl)phenylamino)-5-fluoronicotinamide

Participants

Reaction Steps

To a solution of 2,6-dichloro-5-fluoronicotinamide (287 mg, 1.372 mmol) and 4-(1,4-dimethylpiperidin-4-yl)aniline (267 mg, 1.307 mmol) in THF (10 mL) was added lithium bis(trimethylsilyl)amide (4.57 mL, 4.57 mmol) at room temperature. After 30 min, the reaction was quenched by the addition of satd. NH4Cl. The mixture was extracted with methylene chloride twice, the combined organic layers were washed with water and brine, and then concentrated. The residue was purified by MPLC (ISCO, 6-10% ammonia/methanol/methylene chloride, 40 g silica gel column) to give 229 mg of product as yellow solid.

Provenance & Evidence