rac-(3S,4R)-3-((Benzo[d][1,3]dioxol-5-yloxy)methyl)-4-(4-fluorophenyl-d4)-1-methylpiperidine; rac-(3S-trans)-3-[(1,3-Benzodioxol-5-yloxy)methyl]-4-(4-fluorophenyl-d4)-1-methyl-piperidine; rac-(-)-trans-4-(4-Fluorophenyl-d4)-3-(3,4-methylenedioxyphenoxymethyl)-1-methylpiperidine