A 6-chloro-3-pyridylmethylpropylamine derivative according to the present invention or an acid addition salt thereof is represented by the following formula : 1wherein W represents 3,5-bistrifluoromethylphenyl group, 4-trifluoromethoxyphenyl group, 3-chloro-5-fluorophenyl group, 2,2-difluoro-1,3-benzodioxol-5-yl group and the like. Thus, reduced road map data is generated for a storage medium such as a memory card having a data volume smaller than the primary road map data. The method includes a step of analyzing the measurements to identify suspicious measurements. The ligands described herein include heme compounds, siderophores, polysaccharides, and peptides specific for toxic proteins, outer membrane proteins and conjugated lipids. Various aspects may restore an aging mobile device to its original performance and power utilization levels.