Diisopropylethylamine → 2-((R)-1-(2,4-dichlorophenyl)ethylamino)-4-(4-((R)-piperidine-2-carbonyl)piperazin-1-yl)benzonitrile

Participants

Reaction Steps

To a stirred solution of the (R)-2-(1-(2,4-dichlorophenyl)ethylamino)-4-(piperazin-1-yl)benzonitrile (0.080 g, 0.21 mmol) and (R)-1-(t-butoxycarbonyl)piperidine-2-carboxylic acid (0.049 g, 0.21 mmol) in 1-methyl pyyrolidinone (NMP) (1.0 mL) was added HATU (0.085 g, 0.22 mmol) and iPr2NEt (0.055 g, 0.43 mmol). The reaction mixture was stirred at room temperature for 2 h, and quenched with deionzied water. The aqueous layer was extracted with diethyl ether (2×10 mL). The organic layer was dried (Na2SO4), filtered, and concentrated in vacuo. The crude product was purified by flash chromatography (SiO2, 0-25% ethyl acetate in hexanes) to afford the desired product (0.095 g, 0.16 mmol, 77%).

Provenance & Evidence