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Synthesis of new pyrazolo[4,3-e]-1,2,4-triazolo[1,5-c]pyrimidines and related heterocycles |
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| Authors: | Pier Giovanni Baraldi Hussein El-Kashef Patrice Vanelle |
| Institution: | a Dipartimento di Scienze Farmaceutiche, Università di Ferrara, Via Fossato di Mortara 17-19, 44100 Ferrara, Italy b Department of Chemistry, Faculty of Science, Assiut University, 71516 Assiut, Egypt c Laboratoire de Chimie Organique, UMR CNRS 6517, Faculté de Pharmacie, 27 Boulevard Jean Moulin, 13385 Marseille Cedex 5, France |
| Abstract: | The reaction between 5-amino-4-imino-1(2)-substituted-1(2)H-4,5-dihydropyrazolo3,4-d]pyrimidines and several commercially available reactants afforded new heterocycles with a conserved pyrazolo3,4-d]pyrimidine nucleus. The key intermediates employed proved to be suitable compounds by virtue of their two vicinal amino and imino groups that were used to obtain five, six and seven-membered rings. |
| Keywords: | Reactivity studies Adenosine antagonists Pyrazolo[4 3-e]-1 2 4-triazolo[1 5-c]pyrimidines 5-Amino-4-imino-1(2)-substituted-1(2)H-pyrazolo[3 4-d]pyrimidines |
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