p. 731 - 748
(1994)1-benzyl-4-(9-chloro-1,4-dioxaspiro<4,5>dec-7-en-8-yl)-piperazine
1α,3β,5α,6β-6-(4-benzylpiperazin-1-yl)-3-(4-methylpiperazin-1-yl)-bicyclo<3.1.0>hexane-6-carbonitrile
1α,5α,6β-6-(4-benzyl-piperazin-1-yl)-spiro
1α,5α,6β-6-(4-benzyl-piperazin-1-yl)-3-oxo-bicyclo<3.1.0>hexane-6-carbonitrile