Hydrochloric Acid → HCID 66825924, compound

Participants

Reaction Steps

To a solution of 2-phenyl-1-(quinolin-6-yl)ethanone (Intermediate 67) (100 mg, 0.4 mmol), 3-ethoxy-4-hydroxy-5-nitrobenzaldehyde (85 mg, 0.4 mmol) and urea (72 mg, 1.2 mmol) in 2 mL of ethanol was added 0.5 mL of conc. HCl and was stirred at reflux overnight. The mixture was cooled to room temperature and purified by preparative HPLC (20-50% acetonitrile+0.15% trifluoroacetic acid in water, over 15 min.), followed by column chromatography (PE:EtOAc=2:1˜EtOAc:MeOH=10:1) to give Compound 132 (18 mg, yield 11.8%). 1H NMR (CD3OD 400 MHz): δ 8.84 (d, J=3.2 Hz, 1H), 8.30 (d, J=8.8 Hz, 1H), 7.94 (s, 1H), 7.86 (d, J=8.8 Hz, 1H), 7.66 (s, 1H), 7.59-7.52 (m, 2H), 7.19 (s, 1H), 7.06 (m, 3H), 6.95-6.94 (m, 2H), 5.45 (s, 1H), 4.13-4.05 (m, 2H), 1.41 (t, J=6.8 Hz, 3H); MS (ESI): m/z 483.3 [M+1]+.

Provenance & Evidence