tokens: Therefore , three novel sigma receptor ligands with antagonist activity were evaluated in Swiss Webster mice : BD1018 ( 3S - 1 - [ 2 - ( 3 , 4 - dichlorophenyl ) ethyl ] - 1 , 4 - diazabicyclo [ 4 . 3 . 0 ] nonane ) , BD1063 ( 1 - [ 2 - ( 3 , 4 - dichlorophenyl ) ethyl ] - 4 - methylpiperazine ) , and LR132 ( 1R , 2S - ( + ) - cis - N - [ 2 - ( 3 , 4 - dichlorophenyl ) ethyl ] - 2 - ( 1 - pyrrolidinyl ) cyclohexylamine ) .