MOESM1 of 4-aroylpiperidines and 4-(ι-hydroxyphenyl)piperidines as selective sigma-1 receptor ligands: synthesis, preliminary pharmacological evaluation and computational studies IkomeHermia Ntie-KangFidele NgemenyaMoses TuZhude MachRobert EfangeSimon 2016 Additional file 1.  MS data for synthesized compounds.