1'-bromo-N-{3-[3-(piperidin-1-ylmethyl)phenoxy]propyl}-4'H-spiro[1,3-dioxolane-2,9'-pentacyclo[4.3.0.0~2,5~.0~3,8~.0~4,7~]nonane]-4'-carboxamide ethanedioate (1:1) [ 152191-74-7 ]