SYNTHESIS OF NEW SUBSTITUTED PYRAZOLOPYRIMIDINES AND PYRAZOLO1,3,5-TRIAZINES
5-Substituted 3-amino-1H-pyrazole-4-carbonitriles 2a-d react with appropriate biselectrophilic reagents in the presence of (TEA) to give the substitution products pyrazolopyrimidines 4a-d, 6a-d and pyrazolo1,3,5-triazines 8a-d.Compounds 6a a
Ried, W.,Aboul-Fetouh, S.
p. 7155 - 7162
(2007/10/02)
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