Water → ethyl 3-(6-aminopyridin-3-yl)-2-(1-benzhydryl-1H-imidazol-4-yl)propionate

Participants

Reaction Conditions

Reaction Steps

11 mg (0.23 mmol, 50%) of sodium hydride were added to a solution of 50 mg (0.19 mmol) of ethyl 3-(6-aminopyridin-3-yl)-2-(1H-imidazol-4-yl)propionate (example 1g) in 0.5 ml of DMF at RT and stirred for 1 h. Then 48 mg (0.19 mmol) of bromodiphenyl-methane were added, and the mixture was stirred at RT for 3.5 h. It was then heated at 60° C. for 2 h and, after cooling, 1 ml of water was added, the mixture was extracted with EA, and the organic phase was dried over Na2SO4, filtered and concentrated. Chromatography on silica gel afforded ethyl 3-(6-aminopyridin-3-yl)-2-(1-benzhydryl-1H-imidazol-4-yl)propionate. The product obtained in this way was taken up in 0.4 ml of 50% concentrated hydrochloric acid and treated in a microwave at 180° C. for 3 min. Freeze-drying after cooling of the reaction mixture afforded 5 mg of the title compound as bishydrochloride.

Provenance & Evidence