Efficient Constructions of the Four Different Thienopyrimidinone Skeletons via Various Cyclocondensation of o-Aminothienonitrile with Carbonyl Compounds
作者:Jiarong Li、Junjuan Yang、Daxin Shi、Kai Zhang、Zhangtao Zhao、Fadong Qiu、Yujiao Bi
DOI:10.3987/com-16-13427
日期:——
A series of new thienopyrimidinone derivatives were synthesized via a novel, straightforward and efficient tandem cyclo condensation of o-aminothienonitrile 1 and carbonyl compounds 2 in different conditions. The synthesized four thienopyrimidinone skeletons were thieno[2,3-d]pyrimidinone 3, tert-hydroxythieno[2,3-d]pyrimidinone 4, symmetrical tetracycle thienothiophene-pyrimidone 5 and thienopyrimidine 6 respectively. Their plausible mechanisms were proposed. The properties of compound 5 were investigated.
2,4-Diaminothieno[2,3-d]pyrimidines as antifolates and antimalarials. 1. Synthesis of 2,4-diamino-5,6,4,8-tetrahydrothianaphtheno[2,3-d]pyrimidines and related compounds
作者:A. Rosowsky、M. Chaykovsky、K. K. N. Chen、M. Lin、E. J. Modest