Potassium Carbonate → 5-chloro-2-{[3-(methylsulfonyl)-1H-indol-1-yl]methyl}-1-[3-(methylsulfonyl)propyl)-1H-benzimidazole

Reaction equation

[Cl:1][C:2]1[CH:19]=[CH:18][C:5]2[N:6]([CH2:11][CH2:12][CH2:13][S:14]([CH3:17])(=[O:16])=[O:15])[C:7]([CH2:9]Cl)=[N:8][C:4]=2[CH:3]=1.[CH3:20][S:21]([C:24]1[C:32]2[C:27](=[CH:28][CH:29]=[CH:30][CH:31]=2)[NH:26][CH:25]=1)(=[O:23])=[O:22].C([O-])([O-])=O.[K+].[K+]>CN(C=O)C>[Cl:1][C:2]1[CH:19]=[CH:18][C:5]2[N:6]([CH2:11][CH2:12][CH2:13][S:14]([CH3:17])(=[O:16])=[O:15])[C:7]([CH2:9][N:26]3[C:27]4[C:32](=[CH:31][CH:30]=[CH:29][CH:28]=4)[C:24]([S:21]([CH3:20])(=[O:22])=[O:23])=[CH:25]3)=[N:8][C:4]=2[CH:3]=1