1-(2-(7-methoxyquinoxalin-2-yloxy)ethyl)-N-(4-methyl-3-nitrobenzyl)piperidin-4-amine

7-methoxy-1-(2-(4-(3-methyl-4-nitrobenzylamino)piperidin-1-yl)ethyl)quinoxalin-2(1H)-one

4-[2-(4-aminopiperidin-1-yl)ethyl]-1-methyl-3-oxo-1,2,3,4-tetrahydroquinoxaline-6-carbonitrile

1-methyl-3-oxo-4-[2-(4-{[(3-oxo-3,4-dihydro-2H-pyrido[3,2-b][1,4]thiazin-6-yl)methyl]amino}piperidin-1-yl)ethyl]-1,2,3,4-tetrahydroquinoxaline-6-carbonitrile