Methanol → HCID 59725991, compound

Participants

Reaction Steps

In dichloromethane (3.5 mL), 60 mg (0.105 mmol) of 3-(3-{4-[6-(tert-butoxycarbonyl-methylamino)-purin-9-yl]phenyl}ureido)-5-(trifluoromethyl)benzoic acid was dissolved, and 54.9 μL (0.63 mmol) of oxalyl chloride was slowly added thereto and the mixture solution was stirred under refluxing for 1.5 hours. The solvent was distilled under reduced pressure from the reaction solution and the obtained residue was dissolved in tetrahydrofuran (0.75 mL). The tetrahydrofuran solution thus prepared was added dropwise to a methanol (0.5 mL)/tetrahydrofuran (0.25 mL) solution of 28.7 mg (0.315 mmol) of 2-amino-1,3-propanediol and the resulting solution was stirred at room temperature for 1.5 hours. The solvent was distilled under reduced pressure from the reaction solution and the obtained residue was purified by silica gel column chromatography (dichloromethane:methanol=20:1 to 5:1) to obtain 40.8 mg (60%) of a target product as a white solid.

Provenance & Evidence