Synthesis of Some New Pyrazole and Pyrazolopyrimidine Derivatives

[摘要]：A series of pyrazolo [3,4-d] pyrimidine, pyrazolo [1,5-a] pyrimidine, and pyrazolyl triazoles have been prepared via reaction of ethyl 5-amino-3-phenylpyrazole-4-carboxylate with isothiocyanic esters, alpha,beta-unsaturated nitriles, and some active methylene reagents.

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