HCID 67492909, compound → HCID 67492764, compound

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Reaction Steps

A suspension of 1-(1-methylpiperidin-4-yl)-6-nitro-3,4-dihydroquinolin-2(1H)-one (300 mg, 1.04 mmol) and palladium on activated carbon (10% wt, 55 mg, 0.05 mmol) in 20 mL ethanol/4 mL THF was stirred under a balloon of hydrogen overnight. The suspension was filtered through a pad of celite. The filter pad was rinsed with 50 mL methanol, and the filtrate was concentrated to give a viscous oil. The crude product was used without further purification. (250 mg, 92.6%). 1H-NMR (CDCl3) δ 7.06 (d, J=9.3 Hz, 1H), 6.54-6.49 (m, 2H), 4.46-4.36 (m, 1H), 3.42 (brs, 2H), 2.97-2.94 (m, 2H), 2.73-2.49 (m, 6H), 2.31 (s, 3H), 2.27-2.05 (m, 2H), 1.27-1.21 (m, 2H). MS (ESI): 260.2 (M+1, 100%).

Provenance & Evidence