Cl[C:2]1[C:11]2[C:6](=[CH:7][C:8]([O:12][CH3:13])=[CH:9][CH:10]=2)[N:5]=[CH:4][C:3]=1[C:14]#[N:15].[Br:16][C:17]1[CH:18]=[C:19]([CH:21]=[CH:22][CH:23]=1)[NH2:20]>COC(O)C.CCOCC>[Br:16][C:17]1[CH:18]=[C:19]([NH:20][C:2]2[C:11]3[C:6](=[CH:7][C:8]([O:12][CH3:13])=[CH:9][CH:10]=3)[N:5]=[CH:4][C:3]=2[C:14]#[N:15])[CH:21]=[CH:22][CH:23]=1A solution of 2.97 g (13.6 mmol) of 4-chloro-7-methoxy-3-quinolinecarbonitrile and 4.67 g (27.2 mmol) of 3-bromo aniline in 76 ml of methoxyethanol was refluxed under nitrogen for 5 hours. The solution was cooled and diluted with ether. Solid was collected and washed with ether. The solid was stirred with a hot mixture of ethyl acetate and sodium bicarbonate solution. The organic layer was separated and dried over magnesium sulfate. Solvent was removed and the residue was recrystallized from a chloroform-ethyl acetate mixture giving 1.6 g of 4-[(3-bromophenyl)amino]-7-methoxy-3-quinolinecarbonitrile as a white solid: mass spectrum (electrospray, m/e): M+H 354.1, 356.1.
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