Water → HCID 57899135, compound

Participants

Reaction Conditions

Reaction Steps

The {1-[9-(tetrahydro-pyran-2-yl)-9H-purin-6-yl]-piperidin-4-yl}-carbamic acid tert-butyl ester (107.7 mg, 0.27 mmol) of Example 1A was dissolved in anhydrous dimethylformamide (1 ml) and the solution was cooled to 0° C. in an ice bath. Sodium hydride (13 mg, 60% suspension in oil, 0.33 mmol) was added in small portions. The suspension was stirred vigorously for an additional 20 minutes at 0° C. and then the methyl iodide (0.020 ml, 0.32 mmol) was added drop wise. After stirring the reaction mixture for 30 minutes at 0° C. this was brought to room temperature and left stirring additionally overnight. Water (1.2 ml), followed by ethyl acetate (5 ml) was added to the reaction mixture. The organic layer was separated, washed with water, 0.1 M HCl, a saturated aqueous NaHCO3 solution, and brine before being dried and concentrated in vacuo. The crude product was purified by flash silica column chromatography eluting with 5% methanol in dichloromethane to afford the required compound as a white solid (83 mg, 0.2 mmol, 73%) LC-MS (LCT) Rt 7.07 [M+H]+417.

Provenance & Evidence