To a solution of 5-((2S,3′S)-2-Methyl-[1,3′]bipyrrolidinyl-1′-yl)-pyridin-2-ylamine (0.091 g, 0.369 mmol) in DCM (3 mL) and DMF (1 mL), was added sequentially tetrahydro-2H-pyran-4-carboxlic acid (0.058 g, 0.443 mmol), N-methylmorpholine (0.122 mL, 1.11 mmol), 1-hydroxylbenzotriazole (HOBT) (0.065 g, 0.481 mmol), and EDCl.HCl (0.092 g, 0.481 mmol). The reaction mixture was stirred at room temperature for 16 hours. The reaction was quenched with a saturated aqueous solution of sodium bicarbonate (3 mL) and 15 mL of dichloromethane. The aqueous layer was extracted with dichloromethane (15 mL, 2×). The combined organic layers were washed with sodium bicarbonate (15 mL), brine (15 mL), dried over Na2SO4, and concentrated under vacuum. Purification by column chromatography on silica gel (0-10%) methanol in dichloromethane afforded 4.7 mg (4.0%) of the title compound.
