PyBOP → N-(2-(5-chloro-1H-indol-3-yl)ethyl)-1-(4-isopropylphenyl)-2-oxopyrrolidine-3-carboxamide

Participants

Reaction Steps

A mixture of 2-(5-chloro-1H-indol-3-yl)ethanamine hydrochloride (0.036 g; 0.146 mmol), PyBOP (0.113 g; 0.219 mmol), N,N-diisoprpylethylamine (0.075 mL; 0.437 mmol) and 1-(4-isopropylphenyl)-2-oxopyrrolidine-3-carboxylic acid (0.100 g; 0.425 mmol) was stirred in DMF (3 mL) overnight. The reaction mixture was partitioned between ethyl acetate and sodium hydrogen sulfate, the organic layer was washed with sodium carbonate, brine, dried and concentrated under reduced pressure. The crude mixture was purified flash chromatography on silica (eluent 20 to 100% ethyl acetate in heptane) to yield 0.020 g (32%) of the title compound as a white solid.

Provenance & Evidence