反应详情

A mixture of 2-(4-(1-(5-fluoro-2-methylphenyl)propan-2-ylamino)-2-oxo-1,2-dihydropyridin-3-yl)-4-methyl-6-(1-methylpiperidin-4-yl)imidazo[4,5-f]isoindole-5,7(1H,6H)-dione (0.81 g, 1.46 mmol), zinc dust (0.95 g, 14.55 mmol), and 25 mL of acetic acid was heated at reflux for 13-14 h under an argon atmosphere. Product was separated by a silica gel column using methylene chloride and methanol (85:15 v/v) as eluent to afford 0.12 g of the designed compound as yellowish solid. 1H NMR (500 MHz, DMSO-d6) δ 12.98 (s, 1H, NH), 11.32 (d, J=8.0 Hz, 1H, NH), 11.16 (d, J=4.5 Hz, 1H, NH), 7.80 (s, 1H, ArH), 7.29-7.26 (m, 1H, ArH), 7.15-7.12 (2H, ArH), 6.91-6.85 (m, 1H, ArH), 6.14 (d, J=7.5 Hz, 1H, ArH), 4.43 (s, 2H, CH2), 4.21-4.15 (m, 1H, CH), 4.04-3.99 (m, 1H, CH), 2.97 (d, J=6.5 Hz, 2H, CH2), 2.89-2.87 (m, 2H, CH2), 2.54 (s, 2H, CH2), 2.28 (s, 3H, CH3), 2.21 (s, 3H, CH3), 2.04-1.99 (m, 2H, CH2), 1.89 (s, 3H, CH3), 1.89-1.82 (m, 2H, CH2), 1.70-1.67 (m, 21-1, CH2), 1.34 (d, J=6.0 Hz, 3H, CH3); Mass (ESI, positive) m/z 543.2 [M+H]+; 565.2 [M+Na]+.

1. temperaturewas heated
2. temperatureat reflux for 13-14 h under an argon atmosphere
3. customProduct was separated by a silica gel column