Acetic Acid → 4-Amino-1-[1-(3-bromo-5-chloro-2-methoxy-4-methylphenyl)ethyl]-1H-pyrazolo[3,4-d]pyrimidine-3-carbaldehyde

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Reaction Steps

To a solution of 1-{4-amino-1-[1-(3-bromo-5-chloro-2-methoxy-4-methylphenyl)ethyl]-1H-pyrazolo[3,4-d]pyrimidin-3-yl}ethane-1,2-diol (0.10 g, 0.22 mmol) in tetrahydrofuran (1.6 mL)/water (1.0 mL) was added acetic acid (0.0032 mL, 0.057 mmol) and sodium periodate (0.140 g, 0.657 mmol) at 0° C. After stirring for 2 h, the reaction mixture was diluted with water, extracted with ethyl acetate. The combined organic layers were washed with brine, dried over MgSO4 and concentrated to give the desired crude product which was used directly in the next step. LCMS calculated for C16H16BrClN5O2 (M+H)+: m/z=424.0; Found: 423.9

Provenance & Evidence