Triethylamine → HCID 178425160, compound

Participants

Reaction Steps

To a solution of 4-(1-(2-oxopyridin-1(2H)-yl)ethyl)benzoic acid (111 mg, 0.46 mmol) in dichloromethane (20 mL) were added o-(7-azabenzotriazol-1-yl)-N,N,N′,N′-tetramethyluronium hexafluorophosphate (285 mg, 0.75 mmol) and triethylamine (151 mg, 1.5 mmol). Then 3-(aminomethyl)-4,6-dimethylpyridin-2-ol (76 mg, 0.5 mmol) was added. The mixture was stirred at room temperature for 12 hours. The resultant mixture was washed with water (20 mL×3) and the organic layer was concentrated to give a residue. The residue was purified by column chromatography (silica gel, dichloromethane/methanol=20:1) to give N-((2-hydroxy-4,6-dimethylpyridin-3-yl)methyl)-4-(1-(2-oxopyridin-1(2H)-yl)ethyl)benzamide (57 mg, 33%). LRMS (M+H+) m/z: calcd 377.17. found 377. HPLC purity (214 nm): 98%. 1H NMR (300 MHz, d6-DMSO): δ 11.46 (s, 1H), 8.35-8.33 (m, 1H), 7.80 (d, J=8.1 Hz, 2H), 7.60-7.57 (m, 1H), 7.33-7.30 (m, 3H), 6.39 (d, J=9.3 Hz, 1H), 6.22-6.18 (m, 2H), 5.84 (s, 1H), 4.27 (s, 2H), 2.15 (s, 3H), 2.10 (s, 3H), 1.68 (d, J=7.2 Hz, 3H).

Provenance & Evidence