THE SYNTHESIS OF NEW 5-OXO-4,5-DIHYDRO[1,2,3]TRIAZOLO[1,5-A]QUINAZOLINES
The method for synthesis of new 5-oxo-4,5-dihydro[1,2,3]triazolo[1,5-a]quinazolines based on interaction between methyl 2-azidobenzoates and methyl cyanoacetate with the following hydrolysis and decarboxylation has been suggested. The compounds obtained react with alkylating reagents forming 4-alkyl-5-oxo-4,5-dihydro[1,2,3]triazolo[1,5-a]quinazolines.