Ethyl Acetate → HCID 178438649, compound

Participants

Reaction Steps

To a solution of 2-[(trans-4-{6-[(2′-cyanobiphenyl-4-yl)methyl]-5-oxo-7-propylpyrazolo[1,5-a]pyrimidin-4(5H)-yl}cyclohexyl)oxy]-N-methoxy-N-methylacetamide (0.57 g) in tetrahydrofuran (6 mL) was added dropwise cyclopropylmagnesium bromide (0.5M tetrahydrofuran solution, 4 mL) at 0° C., and the mixture was stirred for 1.5 hr. To the reaction mixture were added ethyl acetate and then saturated aqueous ammonium chloride solution, and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate, and concentrated. The residue was dissolved in ethanol (10 mL), sodium borohydride (0.04 g) was added, and the mixture was stirred for 18 hr. To the reaction mixture were added ethyl acetate and then saturated aqueous ammonium chloride solution, and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate, and concentrated. The residue was purified by silica gel column chromatography to give the title compound as a pale-yellow amorphous solid (0.45 g, 81%).

Provenance & Evidence