[OH:1]O.[Cl:3][C:4]1[CH:5]=[C:6]([CH:22]=[CH:23][C:24]=1[Cl:25])[CH2:7][NH:8][C:9]1[C:18]2[C:13](=[C:14]([S:19][CH3:20])[CH:15]=[CH:16][CH:17]=2)[N:12]=[C:11]([CH3:21])[CH:10]=1>C(O)(=O)C>[Cl:3][C:4]1[CH:5]=[C:6]([CH:22]=[CH:23][C:24]=1[Cl:25])[CH2:7][NH:8][C:9]1[C:18]2[C:13](=[C:14]([S:19]([CH3:20])=[O:1])[CH:15]=[CH:16][CH:17]=2)[N:12]=[C:11]([CH3:21])[CH:10]=1H2O2 (30%, 20.0 mg, 0.55 mmole) was added dropwise to a solution of (3,4-dichlorobenzyl)-(2-methyl-8-methylsulfanylquinolin-4-yl)-amine (100 mg, 0.275 mmole) in acetic acid (3.5 mL) at 0° C. The mixture was stirred at RT for 16 hrs, concentrated by half, 2N NaOH was added and the resulting mixture was extracted with ethyl acetate. The organic phases were dried and concentrated. Precipitation in isopropyl ether gave the product as a white solid (37 mg, 35%).
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