1-Benzylpiperazine or any compound structurally derived from 1-Benzylpiperazine or 1-Phenylpiperazine by modification in any of the following ways—

1. by substitution at the second nitrogen atom of the piperazine ring with alkyl, benzyl, haloalkyl or phenyl groups;
2. by substitution in the aromatic ring to any extent with alkyl, alkoxy, alkylenedioxy, halide or haloalkyl groups;