反应详情

Following procedures of example 14, (S)-benzyl-2-(8-bromoimidazo[1,2-a]pyridin-2-yl)pyrrolidine-1-carboxylate (0.250 g, 0.62 mmol), 2-trifluoromethylphenyl boronic acid (0.1538 g, 0.81 mmol), potassium carbonate (0.1292 g, 0.93 mmol), and tetrakis(triphenylphosphine)palladium(0) (0.0360 g, 0.03 mmol) produced the crude material which was adsorbed onto silica gel and purified by flash chromatography (4 g SiO2, 0-100% ethyl acetate in hexanes) to give (2S)-benzyl-2-(8-(2-(trifluoromethyl)phenyl)imidazo[1,2-a]pyridin-2-yl)pyrrolidine-1-carboxylate (0.264 g, 0.57 mmol, 70%).

1. customproduced the crude material which
2. custompurified by flash chromatography (4 g SiO2, 0-100% ethyl acetate in hexanes)