Pyrrolidine → HCID 22176121, compound

Participants

Reaction Steps

A solution of 3-[4-butoxy-6,7-dichloro-3-[(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)methyl]-1-oxo-2(1H)isoquinolinyl]propionic acid (1.03 g, 2.4 mmol), pyrrolidine (0.20 ml, 2.4 mmol), 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride (0.46 g, 2.4 mmol) and 1-hydroxybenzotriazole (0.37 g, 2.4 mmol) in N,N-dimethylformamide (10 ml) was stirred at room temperature for 2 h. The reaction mixture was poured into water and extracted with ethyl acetate. The extract was washed with brine, dried over anhydrous magnesium sulfate and concentrated under reduced pressure. The residue was recrystallized from tetrahydrofuran-diisopropyl ether to give 2-[[4-butoxy-6,7-dichloro-1-oxo-2-[3-oxo-3-(1-pyrrolidinyl)propyl]-1,2-dihydro-3-isoquinolinyl]-methyl]-1H-isoindole-1,3(2H)-dione (0.72 g, 66.1%) as crystals.

Provenance & Evidence