Triethylamine → 1-(6-Oxo-2-phenyl-5,6-dihydro-1h-[1,2]diazepino[4,5,6-cd]indol-8-yl)-pyrrolidine-2,5-dione

Participants

Reaction Conditions

Reaction Steps

Triethylamine (0.18 mmol, 0.025 mL) and O-(7-azabenzotriazol-1-yl)-N,N,N′,N′-tetramethyluronium hexafluorophosphate (0.04 mmol, 0.013 g) were added to a solution of the title compound of Example 8 (0.013 g, 0.036 mmol) in N,N-dimethylformamide (0.05 M, 0.75 mL). The reaction mixture was stirred at 22° C. for 12 hours and concentrated under reduced pressure. The yellow solid was triturated with methanol (3.0 mL), collected by filtration, and washed with methanol (4.0 mL) and diethyl ether (5.0 mL) to afford the title compound (5.8 mg) in 47% yield.

Provenance & Evidence