Potassium Iodide → 1-[1-(3-Bromo-5-chloro-2-methoxy-4-methylphenyl)ethyl]-3-methyl-1H-pyrazolo[3,4-d]pyrimidin-4-amine

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Reaction Conditions

Reaction Steps

A mixture of 3-bromo-1-chloro-5-(1-chloroethyl)-4-methoxy-2-methylbenzene (150 mg, 0.503 mmol), 3-methyl-1H-pyrazolo[3,4-d]pyrimidin-4-amine (110 mg, 0.76 mmol, ACES Pharma Product List, item #47024), potassium iodide (9.0 mg, 0.05 mmol) and cesium carbonate (330 mg, 1.0 mmol) in N,N-dimethylformamide (4 mL) and was stirred at 140° C. for 1 h. The mixture was diluted with methylene chloride, washed with sat. NaHCO3, water, brine, dried over Na2SO4, filtered and concentrated. The crude product was purified by silica gel chromatography, eluting with 0 to 70% EtOAc in CH2Cl2, to give the desired product (103 mg, 50%). LCMS calculated for C16H18BrClN5O (M+H)+: m/z=410.0; Found: 410.2. The racemic products were applied on a Phenomenex Lux-Cellulose 1 column (21.1×250 mm, 5 micron particle size), eluting with 5% ethanol in hexanes at a flow rate of 18 mL/min, ˜13 mg/injection, to provide two enantiomers. Peak 1, retention time: 12.35 min; Peak 2, retention time: 14.98 min,

Provenance & Evidence