Triethylamine → HCID 136197341, compound

Participants

Reaction Steps

The compound (250 mg, 0.76 mmol) of example 58 was suspended in dichloromethane (20 ml), and added with thionyl chloride (2 ml), followed by refluxing for 2 h to clear the reaction mixture. The reaction mixture was concentrated off thionyl chloride, and added with dichloromethane. Under ice-bath, the reaction mixture was added dropwise into a dichloromethane solution (20 ml) containing ethyl 2-aminoacetate (80 mg, 0.727 mmol) and triethylamine (0.2 ml, 1.454 mmol), followed by stirring for 0.5 h. The reaction mixture was then washed with water (20 ml) and saturated saline (20 ml) respectively. The organic layer was dried with anhydrous sodium sulfate, and concentrated. The residue was passed through a silica gel column to give the white title compound (100 mg, yield: 33%). 1H NMR (CDCl3) δ: 11.01 (1H, br), 8.87 (1H, d), 8.00 (1H, dd), 7.08 (1H, d), 6.87 (1H, br), 4.27 (2H, q), 4.25 (2H, t), 4.21 (2H, t), 2.69 (2H, q), 2.59 (2H, q), 2.00 (2H, m), 1.32 (3H, t), 1.30 (3H, t), 1.15 (6H, t).

Provenance & Evidence