tert-butyl (S)-4-((2,3-dihydrobenzofuran-5-yl)methyl)-3-methylpiperazine-1-carboxylate

tert-butyl (S)-4-((5-chlorothiophen-2-yl)methyl)-3-methylpiperazine-1-carboxylate

tert-butyl (S)-4-((1H-pyrrolo[2,3-b]pyridin-3-yl)methyl)-3-methylpiperazine-1-carboxylate

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

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

tert-butyl (S)-4-(4-chlorobenzyl)-3-methylpiperazine-1-carboxylate

tert-butyl (S)-4-(3-chlorobenzyl)-3-methylpiperazine-1-carboxylate

(S)-(5-((4-(tert-butoxycarbonyl)-2-methylpiperazin-1-yl)methyl)furan-2-yl)boronic acid

tert-butyl (S)-4-(4-fluoro-3-methylbenzyl)-3-methylpiperazine-1-carboxylate

tert-butyl (S)-4-cinnamyl-3-methylpiperazine-1-carboxylate

tert-butyl (S)-4-(4-cyanobenzyl)-3-methylpiperazine-1-carboxylate

tert-butyl (S)-4-(4-ethynylbenzyl)-3-methylpiperazine-1-carboxylate

tert-butyl (S)-3-methyl-4-((4-methylthiazol-5-yl)methyl)piperazine-1-carboxylate

tert-butyl (S)-4-((5-(hydroxymethyl)furan-2-yl)methyl)-3-methylpiperazine-1-carboxylate

tert-butyl (S)-4-((3,5-dimethylisoxazol-4-yl)methyl)-3-methylpiperazine-1-carboxylate

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