Methyl 1-(5-(5-ethyl-2-fluorophenyl)pyrimidin-2-yl)-3-formyl-1H-indole-6-carboxylate → Methyl 1-(5-(5-ethyl-2-fluorophenyl)pyrimidin-2-yl)-3-(1-hydroxyethyl)-1H-indole-6-carboxylate

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Reaction Steps

Methylmagnesium bromide (3 M in ether, 0.45 mL, 1.33 mmol) was added at 0° C. to a solution of 331c) (0.36 g, 0.89 mmol) in THF (70 mL) and the resulting mixture was stirred at this temperature for 6 h. The mixture was quenched with ammonium chloride solution (20 mL) and extracted with ethyl acetate (2×50 mL). The organic phase was washed with brine, dried over sodium sulfate and evaporated. The residue was purified by flash column chromatography [silica; dichloromethane with 0-1.5% methanol]. Light yellow solid. Yield: 0.22 g (59% of theory)

Provenance & Evidence