monatepil [ AJ-2615,monatepil x maleate,monatepil, (R)-isomer,11-((4-(4-(4-fluorophenyl)-1-piperazinyl)butyryl)amino)-6,11-dihydrodibenzo(b,e)thiepin maleate,AJ 2615,monatepil maleate,monatepil, (+-) monatepil,monatepil, (S)-isomer ] structure in first source; RN refers to 1:1 maleate salt (AJ 2615)