Methanol → HCID 45137106, compound

Participants

Reaction Steps

A solution of 3-[4-({[1-(4-fluorophenyl)-1H-pyrazolo[3,4-c]pyridine-4-carbonyl]amino}-methyl)-pyridine-2-sulfonyl]-propionic acid methyl ester (200 mg, 0.4 mmol) in DMSO (5 mL) was treated a 15% solution of sodium methoxide in methanol (150 μL, 0.42 mmol). After 15 minutes, the mixture was cooled (water bath) and ethyl iodoacetate (50 μL, 0.42 mmol) was added followed by removal of the water bath. After 18 hours, the mixture was diluted with EtOAc (30 mL) and water (30 mL) and the organic layer was separated. The aqueous layer was extracted with EtOAc (3×20 mL). The combined organic layers were washed with water (20 mL), dried over magnesium sulfate, filtered and concentrated. The residue was purified by silica gel chromatography using a gradient of 0-6% methanol in dichloromethane. The material from the column was twice triturated with ether, filtered and dried under vacuum to afford the title compound as a tan solid.

Provenance & Evidence