SYNTHESIS OF TRICYCLIC PYRAZOLO[4,5-D]PYRIMIDINONES BY REACTION OF PYRROLIDONE-2 AND ETHYL ESTERS OF 5-AMINO-1-NARYL-1H-1,2,3-TRIAZOLES
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The condensation reaction of 5-Amino-1-N-aryl-1H-1,2,3-triazole ethyl ethers with piperidine-2-one was carried out in 3 steps. Phenyl azide derivatives were obtained in the first step, 5-amino-1-N-aryl-1H-1,2,3-triazole ethyl ethers in the second step, and new tricyclic triazolo[4,5-d]pyrimidinone derivatives were obtained in the third step, and their structures were determined by 1H, 13C NMR and HRMS analysis.
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