Sodium Carbonate → HCID 51036787, compound

Participants

Reaction Steps

7-[[(7R)-8-Cyclopentyl-7-ethyl-5-methyl-6-oxo-7H-pteridin-2-yl]amino]-2-(methoxymethyl)-2,3-dihydrobenzofuran-4-carboxylic acid 40e (50 mg, 0.10 mmol) and O-(benzotriazol-1-yl)-N,N,N′,N′-tetra methyluronium tetrafluoroborate (33 mg, 0.10 mmol) were dissolved in 40 mL of dichloromethane followed by the addition of diisopropylethylamine (38 μL, 0.23 mmol) and 1-methyl-piperidyl-4-yl-amine (12 mg, 0.10 mmol) successively. The reaction solution was stirred for 1 hour, added with 20 mL of saturated sodium carbonate solution and extracted with dichloromethane (30 mL×3). The combined organic phase was washed with water (20 mL) and saturated sodium chloride solution (20 mL) successively, then dried over anhydrous magnesium sulfate, filtered and the filtrate was concentrated under reduced pressure. The resulting residue was purified by silica gel column chromatography to obtain the title compound 7-[[(7R)-8-cyclopentyl-7-ethyl-5-methyl-6-oxo-7H-pteridin-2-yl]amino]-2-(methoxymethyl)-N-(1-methyl-4-piperidyl)-2,3-dihydrobenzofuran-4-carboxamide 40 (40 mg, yield: 69.0%) as a light yellow solid.

Provenance & Evidence