4,5-Diamino-1-phenyl-1,7-dihydro-6<Emphasis Type="Italic">H</Emphasis>-pyrazolo[3,4-<Emphasis Type="Italic">b</Emphasis>]pyridin-6-one in the synthesis of fused tricyclic systems |
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| Authors: | E S Komarova V A Makarov L M Alekseeva G V Avramenko V G Granik |
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| Institution: | 1.D. I. Mendeleev University of Chemical Technology of Russia,Moscow,Russian Federation;2.State Research Center for Antibiotics,Moscow,Russian Federation |
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| Abstract: | Starting from the substituted 4,5-diaminopyrazolo3,4-b]pyridine, derivatives of a number of tricyclic systems, viz., imidazo4,5-d]pyrazolo3,4-b]pyridine, pyrazolo3,4-b]1,2,5]thiadiazolo3,4-d]pyridine, pyrazolo3,4-b]1,2,3]triazolo4,5-d]pyridine, and 1,3]oxazolo5,4-b]pyrazolo4,3-e]pyridine, were synthesized and reaction schemes for the processes were proposed. |
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