[C:1]([C:4]1[CH:5]=[C:6]2[C:11](=[CH:12][C:13]=1[O:14][CH3:15])[N:10]=[CH:9][CH:8]=[C:7]2Cl)(=[O:3])[NH2:2].[OH:17][C:18]1[CH:19]=[C:20]2[C:24](=[CH:25][CH:26]=1)[NH:23][CH:22]=[CH:21]2.C(N(C(C)C)CC)(C)C.CN1CCCC1=O>CS(C)=O>[C:1]([C:4]1[CH:5]=[C:6]2[C:11](=[CH:12][C:13]=1[O:14][CH3:15])[N:10]=[CH:9][CH:8]=[C:7]2[O:17][C:18]1[CH:19]=[C:20]2[C:24](=[CH:25][CH:26]=1)[NH:23][CH:22]=[CH:21]2)(=[O:3])[NH2:2]After mixing 6-carbamoyl-4-chloro-7-methoxyquinoline (2.0 g, 8.4509 mmol), 5-hydroxyindole (1.68 g), diisopropylethylamine (2.2 ml) and N-methylpyrrolidone (2.2 ml), the mixture was heated and stirred at 150° C. for 5 hours. After cooling, the partly solidified reaction mixture was dissolved in dimethylsulfoxide and then adsorbed onto NH silica gel and purified by NH silica gel column chromatography (ethyl acetate-methanol system). The obtained crystals were suspended in ethanol, the suspension was diluted with diethyl ether and hexane, and the crystals were filtered out, washed with diethyl ether:hexane=1:5 and dried by aspiration to obtain the title compound (1.291 g, 3.8698 mmol, 45.79%) as light yellow crystals.
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