[CH:1]([NH2:14])([C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.C(N(CC)CC)C.[Br:22][CH2:23][C:24]1[CH:29]=[CH:28][C:27]([S:30](Cl)(=[O:32])=[O:31])=[CH:26][CH:25]=1.O>ClCCl>[CH:1]([NH:14][S:30]([C:27]1[CH:26]=[CH:25][C:24]([CH2:23][Br:22])=[CH:29][CH:28]=1)(=[O:31])=[O:32])([C:8]1[CH:9]=[CH:10][CH:11]=[CH:12][CH:13]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1Benzhydrylamine (640 μL) was dissolved in dichloromethane (5.0 mL). To the solution, triethylamine (645 μl) and 4-(bromomethyl)benzenesulfonyl chloride (1.0 g) were added at 0° C., and the mixture was stirred at room temperature for 2 hours. To the reaction mixture, water (10 mL) was added, and the resultant mixture was then extracted with chloroform (30 mL). The organic layer was washed with brine (15 mL), dried over anhydrous sodium sulfate, and then concentrated under reduced pressure. The residue was purified by silica gel column chromatography (40% ethyl acetate/hexane) to obtain the title compound (753 mg).
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