abstract |
New 5-substituted derivatives of the 1H-pyrazolo [4,3-e] [1,2,4] triazine systemnof general formula 1,nwhere R is hydroxy, alkoxy,namino, aminoalkyl, aminophenyl,naminobenzyl, hydrazide, thiophenyl and malonate,nR1 is a phenyl or methyl group,nand R2 is methyl |