Citric Acid → HCID 59279494, compound

Participants

Reaction Conditions

Reaction Steps

Sodium hydride (94 mg, 2.34 mmol) was added to (S)-methyl 2-hydroxy-3-((R)-1-methoxypropan-2-yloxy)propanoate (Intermediate Y6) (300 mg, 1.56 mmol) in anhydrous THF (5 mL) at 0° C. under nitrogen. The resulting solution was stirred at 0° C. for 10 minutes and then 4-chloro-1-(2-chlorophenyl)-1H-pyrazolo[3,4-d]pyrimidine (Intermediate B1) (538 mg, 2.03 mmol) was added. The reaction mixture was allowed to warm up to room temperature and stirred for 30 minutes. The reaction mixture was neutralized with 1M citric acid, diluted with ethyl acetate (20 mL), and washed sequentially with water (10 mL) and saturated brine (5 mL). The organic layer was dried (MgSO4) and evaporated. The crude product was purified by flash silica chromatography, eluting with 0-100% ethyl acetate in isohexane to afford the product (358 mg, 54.5%).

Provenance & Evidence