1,3-二甲基苯并咪唑-2-酮 、
(+/-)-5-[[2-(2-Chlorophenyl)ethyl](methyl)amino]hexanoic acid 以obtained in Reference Example 202 according to the same method as that of Example的产率得到(+/-)-1,3-dimethyl-5-[5-[[2-(2-chlorophenyl)ethyl](methyl)amino]hexanoyl]-1,3-dihydro-2H-benzimidazol-2-one hydrochloride