反应详情

To solution of amine E5 (267 mg, 0.720 mmol) in ˜1:1:1 MeOH:EtOH:H2O were sequentially added 4-chloroquinoline (1.06 g, 6.48 mmol) and 3 drops of CHCl, and the resulting mixture was refluxed for ˜24 h. After this time, solvent was removed under reduced pressure, and the resulting residue dried via two MeOH-azeotrope cycles. The residue was re-precipitated from MeOH/EtOAc, and then further purified by preparative HPLC, to afford Cpd. E as an amorphous yellow solid (16 mg, 4%). 1H NMR [(CD3)2SO]: 1.91 [s, 3H, ArCH3], 6.11 [s, 1H, ArH], 7.02 [d, J=6.77 Hz, 1H, ArH], 7.65 [d, J=8.55 Hz, 2H, ArH], 7.71 [br s, 2H, ArNH2], 7.84 [m, 4H, ArH], 8.04 [m, 2H, ArH], 8.15 [d, J=8.55 Hz, 2H, ArH], 8.63 [d, J=6.77 Hz, 1H, ArH], 8.70 [d, J=8.50 Hz, 1H, ArH], 10.38 [s, 2H, ArNHAr & ArH], 10.77 [br s, 1H, ArNHAr], 13.10 [v v br s, 2H, ArC(O)NHAr & quinoline-N+H]. LCMS (APCl+): 463 (100%). HPLC: 95.7%.

1. temperaturethe resulting mixture was refluxed for ˜24 h
2. customAfter this time, solvent was removed under reduced pressure
3. dry with materialthe resulting residue dried via two MeOH-azeotrope cycles
4. customThe residue was re-precipitated from MeOH/EtOAc
5. customfurther purified by preparative HPLC
6. customto afford Cpd