C20H17N3O2
5,6,7,8-tetrahydro-3H-pyrido[4,3-d]pyrimidin-4-one
2,7-diaza-spiro[3.5]nonane-7-carboxylic acid tert-butyl ester
biphenyl-4-yl-(4-chloro-7,8-dihydropyrido[4,3-d]pyrimidin-6(5H)-yl)methanone
6-benzyl-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidin-4(3H)-one