2-Piperazin-1-yl-1H-benzoimidazole → N-(2-(4-(1H-Benzimidazol-2-yl)-piperazin-1-yl)-ethyl)-2,4,5-trichloro-N-isopropyl-benzene-sulfonamide

Reaction equation

[Cl:1][C:2]1[CH:7]=[C:6]([Cl:8])[C:5]([Cl:9])=[CH:4][C:3]=1[S:10]([N:13]([CH2:17][CH2:18]Cl)[CH:14]([CH3:16])[CH3:15])(=[O:12])=[O:11].[NH:20]1[C:24]2[CH:25]=[CH:26][CH:27]=[CH:28][C:23]=2[N:22]=[C:21]1[N:29]1[CH2:34][CH2:33][NH:32][CH2:31][CH2:30]1>>[NH:20]1[C:24]2[CH:25]=[CH:26][CH:27]=[CH:28][C:23]=2[N:22]=[C:21]1[N:29]1[CH2:30][CH2:31][N:32]([CH2:18][CH2:17][N:13]([CH:14]([CH3:15])[CH3:16])[S:10]([C:3]2[CH:4]=[C:5]([Cl:9])[C:6]([Cl:8])=[CH:7][C:2]=2[Cl:1])(=[O:11])=[O:12])[CH2:33][CH2:34]1