4-Methylmorpholine → HCID 57736511, compound

Participants

Reaction Steps

To a solution of 5-[(2,5-difluorophenyl)[(4-fluorophenyl)sulfonyl]methyl]-4-methylpyridine-2-carboxylic acid (106 mg, 0.252 mmol) obtained in Example 12 in methylene chloride (3 ml), β-alanine ethyl ester hydrochloride (46 mg, 0.302 mmol), 1-hydroxybenzotriazole (34 mg, 0.252 mmol), 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride mg, 0.302 mmol) and 4-methylmorpholine (66 μl, 0.604 mmol) were added. The reaction solution was stirred for 15 hours at room temperature, and was concentrated under reduced pressure. The resulting concentration residue was subjected to silica gel column chromatography, and the fraction obtained from an elution with hexane:ethyl acetate (=1:1) was concentrated under reduced pressure, to obtain the title compound (126 mg, 0.242 mmol, 96%) as an amorphous substance.

Provenance & Evidence