Sodium Hydroxide → 1-(7-(3,4-Dimethoxyphenylamino)thiazolo[5,4-d]pyrimidin-5-yl)piperidine-4-carboxylic acid

Participants

Reaction Conditions

Reaction Steps

To a stirred solution of methyl 1-(7-(3,4-dimethoxyphenylamino)thiazolo[5,4-d]pyrimidin-5-yl)piperidine-4-carboxylate (150 mg, 0.35 mmol) in 7.5 mL of 1,4-dioxane and 7.5 mL of H2O was added NaOH (140 mg, 3.5 mmol) at room temperature. Then the reaction was stirred at 60° C. for 3 hours. The solvent was evaporated and the residue was suspended in 50 mL of H2O, then treated by 1N HCl until pH=5. The white solid was appeared and then filtered the solid was dried to give 1-(7-(3,4-dimethoxyphenylamino)thiazolo[5,4-d]pyrimidin-5-yl)piperidine-4-carboxylic acid (130 mg, 90%) as a yellow solid

Provenance & Evidence