The highly versatile 6-cyano-5-oxo-3,5-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine (6) has been synthesized and utilized as a building block for the design of new tricyclic and tetracyclic ring system... Click to show full abstract
The highly versatile 6-cyano-5-oxo-3,5-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine (6) has been synthesized and utilized as a building block for the design of new tricyclic and tetracyclic ring system...
               
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