Lithium Hydroxide → HCID 118590385, compound

Participants

Reaction Conditions

Reaction Steps

To stirred solution of (R)-ethyl 6-(2-(2,5-difluorophenyl)pyrrolidin 1-yl)imidazo[1,2-a]pyridine-3-carboxylate (4.5 g, 12.12 mmol) in Ethanol was added 1M LiOH (0.87 g, 36.3 mmol) solution and stirred for 5 h at 85° C. Solvent was removed under reduced pressure and residue was dissolved in water, extracted unwanted impurities with Diethyl ether and water layer was acidified with 2N HCl and solid was collected by filtration. Solid was dried under high vacuum to afford (R)-6-(2-(2,5-difluorophenyl)pyrrolidin-1-yl)imidazo[1,2-a]pyridine-3-carboxylic acid (Int-14) as pale yellow solid (3.5 g, 84.1% yield), MS (ESI): m/z 344.2 (M+H).

Provenance & Evidence