Synthesis of Ethyl 4(1H)-Oxopyrimido[1,2
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Kang-Chien Liu; Hsu-Shan Huang
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Article
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1989
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John Wiley and Sons
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English
β 180 KB
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In a recent communication'). we reported the synthesis of some biologically interesting 1-substituted 3-(2-perimidyl)-ureas starting from 2-aminoperimidine (la). Because of the presence of a 1,3-dinucleophilic center in this molecule, l a might undergo cyclocondensation with appropriate dielectrophi