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4Reactions with heterocyclic amidines, VII: Synthesis of some new pyrazolo[1,5-c]-1,2,4-triazines, pyrazolo[1,5-a]-1,3,5-triazines and pyrazolo[1,5-a]pyrimidines, Monatshefte f??r Chemie / Chemical Monthly Synthesis of new pyrazolo[1,5-a]pyrimidines, Pharmaceutical Chemistry Journal Five-membered 2,3-dioxo heterocycles: LXXX. Recyclization of 1H-pyrrole-2,3-diones into pyrazolo[1,5-a]pyrimidines by the action of pyrazolamine. Crystalline and molecular structure of substituted pyrazolo[1,5-a]pyrimidine, Russian Journal of Organic Chemistry A. C. Pippione, S. Sainas, A. Federico, E. Lupino, M. Piccinini, M. Kubbutat, et al..
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