(S)-2-methyl-1-(thiophen-2-ylmethyl)piperazine

(S)-2-methyl-1-((1-methyl-1H-pyrazol-4-yl)methyl)piperazine

(S)-2-methyl-1-((1-methyl-1H-pyrrol-2-yl)methyl)piperazine

(S)-2-methyl-1-(pyridin-2-ylmethyl)piperazine

(S)-1-benzyl-2-methylpiperazine

(2S)-2-methyl-1-((tetrahydrofuran-3-yl)methyl)piperazine

(S)-1-((1H-imidazol-4-yl)methyl)-2-methylpiperazine

(S)-1-((1H-pyrrol-2-yl)methyl)-2-methylpiperazine

(S)-N-(2-ethynylbenzyl)-1-(pyrrolidin-2-yl)methanamine

(S)-1-cyclopropyl-N-(pyrrolidin-2-ylmethyl)methanamine

(S)-1-(4-bromothiophen-2-yl)-N-(pyrrolidin-2-ylmethyl)methanamine

(S)-N-(4-bromo-3-methylbenzyl)-1-(pyrrolidin-2-yl)methanamine

(S)-N-(4-bromo-2-methylbenzyl)-1-(pyrrolidin-2-yl)methanamine

(S)-1-cyclohexyl-N-(pyrrolidin-2-ylmethyl)methanamine

(S)-N-(4-iodobenzyl)-1-(pyrrolidin-2-yl)methanamine

(S)-1-(9-ethyl-9H-carbazol-3-yl)-N-(pyrrolidin-2-ylmethyl)methanamine