Dimethylformamide → HCID 46944831, compound

Participants

Reaction Steps

4-(3-cyano-1-ethyl-6-methoxy-1H-indol-2-yl)-benzoic acid (50 mg, 0.16 mmol) was suspended in CH2Cl2 (2.2 mL) and catalytic DMF (2 μL). Oxalyl chloride (22 μL, 0.25 mmol) was added. The reaction mixture was stirred at room temperature for 1 hour, at which time full dissolution occurred. This reaction mixture was pipetted dropwise into a vigorously stirring solution of morpholine (1.0 mL) in CH2Cl2 (5 ml). After addition was complete, the reaction mixture was washed with aqueous HCl solution. The organic layer was dried and concentrated. Purification by silica column (1:1 CH2Cl2/EtOAc) yielded 1-ethyl-6-methoxy-2-[4-(morpholine-4-carbonyl)-phenyl]-1H-indole-3-carbonitrile (56 mg, 90%) as a white solid.

Provenance & Evidence