Thiophenol → 2-[4-(2,2-dimethylbutyl)-1-trityl-1H-imidazol-2-yl]-1-[4-(5-fluoropyridin-2-yl)phenyl]-N-methylethanamine

Participants

Reaction Conditions

Reaction Steps

Potassium carbonate (1.1 g, 7.7 mmol) was added to an ambient temperature solution of N-{2-[4-(2,2-dimethylbutyl)-1-trityl-1H-imidazol-2-yl]-1-[4-(5-fluoropyridin-2-yl)phenyl]ethyl}-N-methyl-4-nitrobenzenesulfonamide (2.5 g, 3.1 mmol) and benzenethiol (0.64 mL, 6.2 mmol) in N,N-dimethylformamide (20 mL). After stirring at 50° C. for 3 h, then at 70° C. for a further 3 h, the reaction mixture was cooled and partitioned between diethyl ether and saturated aqueous sodium bicarbonate. The organic phase was dried (magnesium sulfate) and concentrated. Chromatography over silica eluting with 0-100% ethyl acetate (containing 5% 2 M ammonia in methanol)/hexane afforded 2-[4-(2,2-dimethylbutyl)-1-trityl-1H-imidazol-2-yl]-1-[4-(5-fluoropyridin-2-yl)phenyl]-N-methylethanamine.

Provenance & Evidence