tert-butyl 6-(6-(2,6-dichlorophenyl)-8-(1H-imidazol-2-yl)-5-oxo-5,6-dihydropyrido[4,3-d]pyrimidin-2-ylamino)-3,4-dihydroisoquinoline-2(1H)-carboxylate

8-(1,3-benzothiazol-2-yl)-6-(2,6-dichlorophenyl)-2-{[4-(4-methylpiperazin-1-yl)phenyl]amino}pyrido[4,3-d]pyrimidin-5(6H)-one

8-(benzo[d]thiazol-2-yl)-6-(2,6-dichlorophenyl)-2-(methylthio)pyrido[4,3-d]pyrimidin-5(6H)-one

8-(1H-benzo[d]imidazol-2-yl)-6-(2,6-dichlorophenyl)-2-(methylthio)pyrido[4,3-d]pyrimidin-5(6H)-one

8-(1H-benzimidazol-2-yl)-6-(2,6-dichlorophenyl)-2-{[4-(4-methylpiperazin-1-yl)phenyl]amino}pyrido[4,3-d]pyrimidin-5(6H)-one