N-(5-chlorothiophen-1-ylmethyl)piperazine 、
2-{[[4-(3-chloropropylthio)-3-methyl-2-pyridinyl]methyl]thio}-5,6-difluoro-1H-benzimidazole 以50%的产率得到2-{[[4-[3-[4-(5-Chlorothiophen-2-ylmethyl)-piperazin-1-yl]propylthio]-3-methyl-2-pyridinyl]-methyl]thio}-5,6-difluoro-1H-benzimidazole