An Efficient One-Pot Synthetic Method for 2,4-Disubstituted 7-Arylpyrido[4,3-d]pyrimidines from 2,4-Disubstituted 6-(Arylethynyl)pyrimidine-5-carbaldehydes and tert-Butylamine - Cikotiene, Inga; Morkunas, Marius; Rudys, Simonas; Buksnaitiene, Rita; Brukstus, Algirdas (Synlett, 2008)