反应详情

To a stirred solution of 8-fluoro-1-(2-(1-methylpyrrolidin-2-yl)ethyl)-6-nitro-1,2,3,4-tetrahydroquinoline (660 mg, 2.147 mmol) in tetrahydrofuran (6 ml) and ethanol (6.00 ml) was added palladium on carbon, 10 wt % (229 mg, 0.215 mmol). The suspension was stirred under balloon pressure of hydrogen and monitored by TLC. After 4 h, the reaction was complete. The mixture was then filtered through a pad of celite which was washed with methanol. The filtrate was then concentrated and dried on a high vacuum pump. The residue (8-fluoro-1-(2-(1-methylpyrrolidin-2-yl)ethyl)-1,2,3,4-tetrahydroquinolin-6-amine (590 mg, 2.127 mmol, 99% yield)) was used directly in the subsequent reaction. 1H NMR (DMSO-d6) δ 6.16 (dd, J=14.7, 2.4 Hz, 1H); 6.04 (m, 1H), 4.70 (brs, 1H), 2.99-2.93 (m, 3H), 2.88-2.82 (m, 2H), 2.57-2.53 (m, 2H), 2.24 (s, 3H), 2.15-2.05 (m, 2H); 1.93-1.87 (m, 2H), 1.69-1.60 (m, 4H), 1.44-1.35 (m, 2H).

1. filtrationThe mixture was then filtered through a pad of celite which
2. washwas washed with methanol
3. concentrationThe filtrate was then concentrated
4. customdried on a high vacuum pump