1-Methyl-3-(trifluoroacetyl)-1H-indole → 2,2,2-Trifluoro-1-[3-(4-fluorophenyl)imidazo[1,5-a]pyridin-7-yl]-1-(1-methyl-1H-indol-3-yl)ethanol

Participants

Reaction Steps

To a chilled (−78° C.) solution of 7-bromo-3-(4-fluorophenyl)imidazo[1,5-a]pyridine (58 mg, 0.2 mmol) in anhydrous THF (1 mL) was added n-butyllithium (0.1 mL of a 2.5 M solution in hexanes, 2.5 mmol). After 1 minute, a chilled (−78° C.) solution of 2,2,2-trifluoro-1-(1-methyl-1H-indol-3-yl)ethanone (68 mg, 0.3 mmol) in 1 mL of THF was added. After 5 minutes, the reaction mixture was quenched with 50 mL of brine solution and extracted with three 25 mL portions of methylene chloride. The combined organic extracts were washed with water, dried over anhydrous sodium sulfate, and concentrated in vacuo to afford a yellow oil. The residue was purified by column chromatography over silica gel eluting with 0-70% ethyl acetate to afford 30 mg of the title compound as a light yellow solid. MS m/z 440 (MH+).

Provenance & Evidence