(6-(3,5-dimethylisoxazol-4-yl)-2-ethoxy-1H-benzo[d]imidazol-4-yl)(pyridin 2-yl)methanone → 1-(6-(3,5-dimethylisoxazol-4-yl)-2-ethoxy-1H-benzo[d]imidazol-4-yl)-2-methyl-1-(pyridin-2-yl)butan-1-ol

関与物質

反応手順

(6-(3,5-dimethylisoxazol-4-yl)-2-ethoxy-1H-benzo[d]imidazol-4-yl)(pyridin-2-yl)methanone (20 mg, 0.055 mmol) was dissolved in dry THF (0.55 mL) under argon. Sec-butylmagnesium bromide (1.0 M in THF, 0.27 mL, 0.28 mmol) was added dropwise and the reaction was allowed to stir for 10 minutes. The reaction was quenched with water, concentrated and purified by reverse-phase HPLC to give 1-(6-(3,5-dimethylisoxazol-4-yl)-2-ethoxy-1H-benzo[d]imidazol-4-yl)-2-methyl-1-(pyridin-2-yl)butan-1-ol intermediate. Intermediate was taken up in 0.5 mL EtOH and 0.3 mL 4.0M HCl/dioxane and heated to 65° C. for 1 hr. Reaction was concentrated and purified by reverse phase HPLC to afford the desired product

情報源と証拠