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Pyrrolo- and pyrazolo-[3,4-e][1,2,4]triazolo[1,5-c]pyrimidines as adenosine receptor antagonists

✍ Scribed by Pier Giovanni Baraldi; Giulia Saponaro; Mojgan Aghazadeh Tabrizi; Stefania Baraldi; Romeo Romagnoli; Allan R. Moorman; Katia Varani; Pier Andrea Borea; Delia Preti

Book ID: 113495606
Publisher: Elsevier Science
Year: 2012
Tongue: English
Weight: 484 KB
Volume: 20
Category: Article
ISSN: 0968-0896
DOI: 10.1016/j.bmc.2011.11.037

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## Abstract Some new 1,2,3‐triazolo[4,5‐__e__]‐1,2,4‐triazolo[3,4‐__c__]pyrimidmes were prepared starting from the corresponding 1,2,3‐triazolo[4,5‐__d__]pyrimidines __via__ the formation of the 1,2,4‐triazole ring. Thus suitable hydrazino derivatives 6 were condensed with triethyl orthoformate, tr