反应详情

To a solution of amide E5 (306 mg, 0.83 mmol) in 1:2 EtOH:H2O (10 mL) were sequentially added c.HCl (0.23 mL) and 4-chloro-7-dimethylaminoquinoline (Z1) (188 mg, 0.91 mmol), and the resulting mixture was refluxed for 20 h. After this time [when MS and TLC analysis (5:4:1 n-BuOH:H2O:CH3CO2H) of the reaction mixture suggested the remaining small quantity of E5 was degrading], the reaction mixture was filtered, and the resulting solid washed sequentially with EtOAc and hexanes, to furnish Cpd. BB as an amorphous lemon-yellow solid (199 mg, 45%). 1H NMR [CD3)2SO]: 2.28 [s, 3H, ArCH3], 3.15 [s, 6H, ArN(CH3)2], 6.18 [br s, 1H, ArH], 6.70 [d, J=7.02 Hz, 1H, ArH], 6.88 [d, J=2.46 Hz, 1H, ArH], 7.38 [dd, J=9.62, 2.46 Hz, 1H, ArH], 7.61 [d, J=8.60, 2H, ArH], 7.81 [m, 5H, ArH & ArNH2], 8.14 [d, J=8.60 Hz, 2H, ArH], 8.31 [d, J=7.02 Hz, 1H, ArH], 8.55 [d, J=9.71 Hz, 1H, ArH], 10.41 [br s, 1H, ArH], 10.65 [m, 2H, ArNHAr & ArNHAr], 12.68 [v br s, 1H, ArC(O)NH], 13.77 [v br s, 1H, quinolinyl N+H]. LCMS (APCl+): 506 (100%). HPLC: 96.6%.

1. filtrationwas filtered
2. washthe resulting solid washed sequentially with EtOAc and hexanes
3. customto furnish Cpd