Triethylamine → 2-(4-Cyano-phenyl)-N-{5-[7-(1-hydroxymethyl-cyclopropyl)-7H-pyrrolo[2,3-d]pyrimidine-5-carbonyl]-pyridin-3-yl}-acetamide

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(4-Cyano-phenyl)-acetic acid (6.1 mg, 0.04 mmol) was added to a solution of (5-Amino-pyridin-3-yl)-{7-[1-(tetrahydro-pyran-2-yloxymethyl)-cyclopropyl]-7H-pyrrolo[2,3-d]pyrimidin-5-yl}-methanone (15 mg, 0.04 mmol) (Preparation 251) in THF (1 mL). Then 1-propylphosphonic acid cyclic anhydride (0.07 mL, 0.11 mmol) and triethylamine (0.02 mL, 0.13 mmol) were added and the mixture was stirred at 25° C. for 4 hours. The reaction mixture was quenched with saturated aqueous sodium bicarbonate solution (2 mL) and extracted with ethyl acetate (3×5 mL). The combined organic layer was washed with water (5 mL), brine (5 mL), dried over sodium sulphate and evaporated in vacuo. The crude was dissolved in methanol (1 mL), PTSA (5 mg) was added and stirred at room temperature for 16 hours. The reaction mixture was quenched with saturated aqueous sodium bicarbonate solution (2 mL) and extracted with dichloromethane (5×5 mL). The combined organic layer was washed with brine (5 mL), dried over sodium sulphate and evaporated in vacuo. The crude material was purified by preparative TLC (dichloromethane:methanol 95:5) to afford the title compound as a white solid in 58% yield, 10 mg.

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