Sodium Chlorite → HCID 86698611, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of 6-chloro-5-{4-[1-(methylsulfonyl)pyrrolidin-3-yl]phenyl}-1H-indole-3-carbaldehyde (120 mg, 0.298 mmol) in acetonitrile (5 mL) and tert-butanol (5 mL) was added 2-methyl-2-butene (4 mL). The reaction mixture was cooled to 0° C. and treated with a solution of sodium chlorite (299.5 mg, 3.29 mmol) and sodium phosphate monobasic dihydrate (697 mg, 4.47 mmol) in water (2 mL) dropwise. After the reaction mixture was stirred for 2 h at room temperature, additional sodium chlorite (399.3 mg, 4.39 mmol) and sodium phosphate monobasic dihydrate (930 mg, 5.96 mmol) in H2O (2 mL) and 2-methyl-2-butene (1 mL) was added. The reaction mixture was stirred at room temperature for 16 h. The reaction mixture was evaporated in vacuo and the aqueous residue was extracted with EtOAc (3×40 mL). The combined organic layers were dried over Na2SO4 and concentrated in vacuo. The residue was dissolved in DMSO and purified via prep-HPLC to give 6-chloro-5-{4-[1-(methylsulfonyl)pyrrolidin-3-yl]phenyl}-1H-indole-3-carboxylic acid (56 mg) as a white solid.

Provenance & Evidence