Lithium Hexamethyldisilazide → N-(3-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)pyridin-2-yl)-1-chloro-6-methylisoquinolin-5-amine

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A mixture of 4-(2-fluoropyridin-3-yl)-7H-pyrrolo[2,3-d]pyrimidine (2.17 g, 10.1 mmol) and 1-chloro-6-methylisoquinolin-5-amine (1.95 g, 10.1 mmol) in THF (4 mL) was sonicated for 3 min until throughly mixed. Lithium bis(trimethylsilyl)amide (7.63 g, 45.6 mmol) (1 N in THF from Aldrich) was added in a stream and the resulting dark brown solution was stirred at 22° C. for 4 h. The reaction was quenched with NaHCO3 (aq., sat.) while cooled in an ice bath. The reaction mixture was then partitioned between EtOAc and NaHCO3 (aq., sat). The aqueous layer was washed with EtOAc twice. The organic layers were combined and concentrated in vacuo. The light brown solid residue was triturated with EtOAc (˜50 mL) to give a yellow solid. This solid was collected by filtration and washed with EtOAc twice and then dried in a vacuum oven (45° C.) over the weekend to give N-(3-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)pyridin-2-yl)-1-chloro-6-methylisoquinolin-5-amine as a yellow solid (2.85 g, 73% yield). MS (ESI, pos. ion) m/z: 387 [M+H]+

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