Abstract The synthesized 4-(2′-hydroxy-or 2′-amino-ethyl) amino-butyrophenones or butyrothienones, a novel class of basic, anti-inflammatory compounds, are of interest, since they present major differences compared to the classical (steroidal, non steroidal or immunosuppressive) anti-inflammatory agents. Ionization constants and lipophilicity, expressed as log P, from the octanol/water system, or as RM values, from reversed phase ...