N-(3,4-Dichlorophenyl)thiourea → 6-((2-(3,4-dichlorophenylamino)thiazol-4-yl)methoxy)-3,4-dihydroquinolin-2(1H)-one

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Reaction Steps

To a stirred solution of 6-(3-bromo-2-oxopropoxy)-3,4-dihydroquinolin-2(1H)-one (0.15 g, 0.503 mmol) in ethanol (3 mL) was added 1-(3,4-dichlorophenyl)thiourea (0.133 g, 0.604 mmol). The reaction mixture was refluxed for 12 h, then concentrated and purified by preparative HPLC to afford a white solid (0.05 g, 24%). 1H NMR 400 MHz, DMSO-d6: δ 2.40 (t, J=7.20 Hz, 2H), 2.85 (t, J=8.00 Hz, 2H), 4.99 (s, 2H), 6.80 (d, J=8.80 Hz, 1H), 6.87 (q, J=2.80 Hz, 1H), 6.92 (d, J=2.40 Hz, 1H), 6.98 (s, 1H), 7.48-7.49 (m, 2H), 8.06 (d, J=2.00 Hz, 1H), 9.92 (s, 1H), 10.56 (s, 1H). LCMS: RT 1.99 min; LCMS (ES-API), m/z 420. LCMS: RT 1.99 min; LCMS (ES-API), m/z 420.

Provenance & Evidence