Tert-butyl 3-{[2-(tert-butoxy)-2-oxoethyl]amino}pyrrolidine-1-carboxylate

5-chloro-2-(ethylsulfanyl)-N-[2-(4-sulfamoylphenyl)ethyl]pyrimidine-4-carboxamide

1-(3-ethoxypropyl)-2-imino-8-methyl-5-oxo-N-(2-phenylethyl)-1,5-dihydro-2H-dipyrido[1,2-a:2',3'-d]pyrimidine-3-carboxamide

7-(3-ethoxypropyl)-6-imino-13-methyl-N-[2-(morpholin-4-yl)ethyl]-2-oxo-1,7,9-triazatricyclo[8.4.0.0^{3,8}]tetradeca-3(8),4,9,11,13-pentaene-5-carboxamide

2-imino-8-methyl-5-oxo-N-(1-phenylethyl)-1-(tetrahydrofuran-2-ylmethyl)-1,5-dihydro-2H-dipyrido[1,2-a:2',3'-d]pyrimidine-3-carboxamide

2-imino-8-methyl-5-oxo-1-(2-oxolanylmethyl)-N-(2-phenylethyl)-3-dipyrido[1,2-d:3',4'-f]pyrimidinecarboxamide

7-[5-[(4-Chlorophenyl)methylsulfanyl]-1,3,4-thiadiazol-2-yl]-13-methyl-2,6-dioxo-1,7,9-triazatricyclo[8.4.0.03,8]tetradeca-3(8),4,9,11,13-pentaene-5-carbonitrile

2,5-dioxo-1-(1,3-thiazol-2-yl)-1,5-dihydro-2H-dipyrido[1,2-a:2',3'-d]pyrimidine-3-carbonitrile

1-(3-ethoxypropyl)-2-imino-N-(3-methoxypropyl)-8-methyl-5-oxo-1,5-dihydro-2H-dipyrido[1,2-a:2',3'-d]pyrimidine-3-carboxamide

N-[4-(azepan-1-ylsulfonyl)phenyl]-5-chloro-2-(propylsulfanyl)pyrimidine-4-carboxamide

N-{4-[benzyl(methyl)sulfamoyl]phenyl}-5-chloro-2-(propylsulfanyl)pyrimidine-4-carboxamide