Citric Acid → HCID 71612269, compound

Participants

Reaction Steps

To a solution of 722 mg of ethyl 4-({2-[5-cyclopropyl-1-(4-ethoxy-2,6-difluorobenzyl)-4-methyl-1H-pyrazol-3-yl]-5-methoxypyrimidin-4-yl}amino)-pyridine-3-carboxylate 2-6-5 (1.28 mmol, 1.0 eq) in 13 mL THF and 1.6 mL methanol were added 256 mg sodium hydroxide (6.39 mmol, 5.0 eq). The mixture was stirred for 45 minutes at rt. Using 10% aqueous citric acid the pH of the mixture was adjusted to 3.5. The resulting suspension was filtered. The precipitate was washed with water and ethanol and subsequently dried to provide 660 mg of the desired product (1.11 mmol, 87%) as 90% pure target compound.

Provenance & Evidence