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Synthesis 1986; 1986(1): 71-74
DOI: 10.1055/s-1986-31483
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The Synthesis of Pyrazolo[1,5-b][1,2,4]triazines, A New Heterocyclic Ring System

D. Robert Sliskovic* , Marshall Siegel, YANG-I. Lin
  • *American Cyanamid Company, Medical Research Division, Lederle Laboratories, Pearl River, New York 10965, U. S. A.
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Publication Date:
20 August 2002 (online)

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Four representatives of the new ring system pyrazolo[1,5-b][1,2,4]triazine were prepared by N-amination of 3(5)-aminopyrazole or its 5(3)-phenyl derivative and cyclocondensation of the resultant 1,5-diaminopyrazoles with glyoxal, butanedione, or benzil.