Diisopropylethylamine → (R)-N,N-dimethyl-6-(methyl(1-(7-((2-(trimethylsilyl)ethoxy)methyl)-7H-pyrrolo[2,3-d]pyrimidin-4-yl)pyrrolidin-3-yl)amino)pyridine-3-sulfonamide

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To a solution of 6-chloro-N,N-dimethylpyridine-3-sulfonamide (1 mmol) and DIPEA (2.5 mmol) in NMP (2 mL) was added (R)—N-methyl-1-(7-((2-(trimethylsilyl)ethoxy)methyl)-7H-pyrrolo[2,3-d]pyrimidin-4-yl)pyrrolidin-3-amine (0.5 mmol). The reaction mixture was stirred at 200° C. for 60 minutes in microwave reactor. After cooling to room temperature, the mixture was diluted with EtOAc, washed with brine, dried, filtered, and concentrated. The residue was purified by chromatography with MeOH/H2O to give the title compound in yellow in 8% yield.

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