Glycolic Acid → 2-(4-{2-(2-Aminopyrimidin-5-yl)-9-isobutyl-6-[(3S)-3-methylmorpholin-4-yl]-9H-purin-8-yl}piperazin-1-yl)-2-oxoethanol

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Reaction Steps

A methylene chloride (5 ml) solution of 5-{9-isobutyl-6-[(3S)-3-methylmorpholin-4-yl]-8-piperazin-1-yl-9H-purin-2-yl}pyrimidin-2-amine (126 mg, 0.28 mmol), hydroxyacetic acid (25 mg, 0.33 mmol), 1-hydroxybenzotriazole (37 mg, 0.28 mmol), 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride (64 mg, 0.33 mmol), and triethylamine (58 μl, 0.42 mmol) was stirred at room temperature for 2 days. Chloroform and saturated aqueous sodium hydrogen carbonate solution were added to the reaction mixture and the resulting mixture was extracted with chloroform. The organic layer was dried over anhydrous magnesium sulfate and, after filtration, the filtrate was concentrated under reduced pressure. The residue was purified by flash silica gel column chromatography (methylene chloride:methanol=96:4) to give a solid. Ether was added to the resulting solid and the solid was collected by filtration and dried to give the title compound (110 mg, 77%) as a powder.

Provenance & Evidence