... 42, No. 2, 2006 SYNTHESIS OF NOVEL 5-PIPERIDYL- SUBSTITUTED 7-HYDROXY-3H- 1,2,3-TRIAZOLO[4,5-d]PYRIMIDINES KV Kuleshov, K. Yu. Borovkov, OG Rodin, and VP Perevalov A series of 8-azapurin-6-ones having a piperidine substituent at position 5 has been synthesized from pipecolinate esters, benzylazides, and cyanoacetamide. Keywords: 8-azapurin-6-one, benzylazides, piperidine, triazole, dopamine receptors. ...