title: Synthesis of novel pyrimidine fused 8-membered heterocycles via iminium ion cyclization reactions.
abstract: Novel tricyclic pyrimidine-fused 8-membered heterocycles were prepared by an iminium ion cyclization using pyrimidinediamine systems with electron-rich aromatic rings.
authors.affiliation: The Center for Combinatorial Chemistry and Drug Discovery, Jilin University, 75 Haiwai Street, Changchun, Jilin 130012, PR China.
authors.forename: Xin
authors.initials: X
authors.lastname: Che
authors.forename: Lianyou
authors.initials: L
authors.lastname: Zheng
authors.forename: Qun
authors.initials: Q
authors.lastname: Dang
authors.forename: Xu
authors.initials: X
authors.lastname: Bai
mesh_terms: D001554:Benzene / Q000737:chemistry; D003500:Cyclization; D006571:Heterocyclic Compounds / Q000138:chemical synthesis* / Q000737:chemistry; D006843:Hydrocarbons, Chlorinated / Q000737:chemistry; D007097:Imines / Q000737:chemistry*; D007211:Indoles / Q000737:chemistry; D007477:Ions / Q000737:chemistry; D015394:Molecular Structure; D011743:Pyrimidines / Q000737:chemistry*
chemical_list: D006571:Heterocyclic Compounds; D006843:Hydrocarbons, Chlorinated; D007097:Imines; D007211:Indoles; D007477:Ions; D011743:Pyrimidines; D001554:Benzene; C030986:pyrimidine