[C:1]1([N:11]2[CH:15]=[N:14][NH:13][C:12]2=[S:16])[C:10]2[C:5](=[CH:6][CH:7]=[CH:8][CH:9]=2)[CH:4]=[CH:3][CH:2]=1.Br[CH2:18][C:19]([NH:21][C:22]1[CH:27]=[CH:26][CH:25]=[CH:24][C:23]=1[N+:28]([O-:30])=[O:29])=[O:20].N1C=CC=CC=1>CS(C)=O.O>[C:1]1([N:11]2[CH:15]=[N:14][N:13]=[C:12]2[S:16][CH2:18][C:19]([NH:21][C:22]2[CH:27]=[CH:26][CH:25]=[CH:24][C:23]=2[N+:28]([O-:30])=[O:29])=[O:20])[C:10]2[C:5](=[CH:6][CH:7]=[CH:8][CH:9]=2)[CH:4]=[CH:3][CH:2]=1A solution of 2,4-dihydro-4-(1-naphthalenyl)-3H-1,2,4-triazole-3-thione (129 mg, 0.50 mmol) in DMSO (2 mL) was added slowly to a solution of 2-bromo-N-(2-nitrophenyl)acetamide (113 mg, 0.50 mmol) and pyridine (121 μL, 1.49 mmol) in DMSO (1 mL) at room temperature. The mixture was stirred at room temperature for 18 h, then diluted with water and extracted with EtOAc (50 mL). The organic layer was washed with water (3×) and brine, dried (MgSO4), filtered and concentrated under reduced pressure. A mixture of Et2O and hexane (1:1) was added, the resulting suspension was filtered and the filtrate was concentrated under reduced pressure. The residue was purified by HPLC using a gradient of MeCN/H2O containing TFA (0.06%) (CombiPrep ODS-AQ 50×20 mm, 5μ, 120 Å). The pure fractions were combined and concentrated to give the title compound (4.5 mg, 2% yield).
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