tert-butyl (S)-4-(anthracen-9-ylmethyl)-3-methylpiperazine-1-carboxylate

tert-butyl (S)-3-methyl-4-(4-(4-methylpiperazin-1-yl)benzyl)piperazine-1-carboxylate

tert-butyl (S)-4-((1-benzylpiperidin-4-yl)methyl)-3-methylpiperazine-1-carboxylate

tert-butyl (S)-4-(4-bromo-2-fluorobenzyl)-3-methylpiperazine-1-carboxylate

tert-butyl (S)-3-methyl-4-(3-phenoxybenzyl)piperazine-1-carboxylate

tert-butyl (S)-3-methyl-4-(2,3,4-trimethoxybenzyl)piperazine-1-carboxylate

tert-butyl (S)-3-methyl-4-(3,4,5-trimethoxybenzyl)piperazine-1-carboxylate

tert-butyl (S)-4-(2,4-dinitrobenzyl)-3-methylpiperazine-1-carboxylate

tert-butyl (S)-4-(5-allyl-2-hydroxy-3-methoxybenzyl)-3-methylpiperazine-1-carboxylate

tert-butyl (S)-4-((2-chloroquinolin-3-yl)methyl)-3-methylpiperazine-1-carboxylate

tert-butyl (S)-3-methyl-4-(4-morpholinobenzyl)piperazine-1-carboxylate

tert-butyl (S)-4-((5-(2-fluorophenyl)-1H-pyrrol-3-yl)methyl)-3-methylpiperazine-1-carboxylate

tert-butyl (S)-4-(2-(1,3-dioxoisoindolin-2-yl)ethyl)-3-methylpiperazine-1-carboxylate

tert-butyl (S)-3-methyl-4-(5-methyl-2-phenylhex-2-en-1-yl)piperazine-1-carboxylate

tert-butyl (S)-4-((2,2-difluorobenzo[d][1,3]dioxol-5-yl)methyl)-3-methylpiperazine-1-carboxylate

tert-butyl (S)-4-((6-bromopyridin-2-yl)methyl)-3-methylpiperazine-1-carboxylate