title: Synthesis of novel 4H-pyrimido[1,6-a]pyrimidines via a one-pot three-component condensation.
abstract: Highly substituted novel 4H-pyrimido[1,6-a] pyrimidines were prepared by a trifluoromethanesulfonic acid catalyzed one-pot three-component condensation of 4-aminopyrimidines, aldehydes, and β-ketoesters. A preliminary feasibility study was undertaken on these compounds, to assess the potential production of a library of further diversified compounds by nucleophilic replacement of Cl(R(1)) or by reaction of electrophiles with the NH(2)(R(2)) group.
authors.affiliation: The Center for Combinatorial Chemistry and Drug Discovery, The School of Pharmaceutical Sciences and The College of Chemistry, Jilin University, 1266 Fujin Road, Changchun, 130021, Jilin, People's Republic of China.
authors.forename: Jinbao
authors.initials: J
authors.lastname: Xiang
authors.forename: Hanghang
authors.initials: H
authors.lastname: Li
authors.forename: Kai
authors.initials: K
authors.lastname: Yang
authors.forename: Lang
authors.initials: L
authors.lastname: Yi
authors.forename: Yongnan
authors.initials: Y
authors.lastname: Xu
authors.forename: Qun
authors.initials: Q
authors.lastname: Dang
authors.forename: Xu
authors.initials: X
authors.lastname: Bai
mesh_terms: D000090:Acetoacetates / Q000737:chemistry; D001547:Benzaldehydes / Q000737:chemistry; D002625:Chemistry, Organic / Q000379:methods*; D008968:Molecular Conformation; D011743:Pyrimidines / Q000138:chemical synthesis* / Q000737:chemistry
chemical_list: D000090:Acetoacetates; D001547:Benzaldehydes; D011743:Pyrimidines; C024840:ethyl acetoacetate; C032175:benzaldehyde