Journal of Heterocyclic Chemistry

Ring closure reactions of 5??azidopyrido [2, 3??d] pyrimidinetriones to isoxazolo??and oxadiazolopyrido [2, 3??d] pyrimidinetriones

D Van Tinh, W Stadlbauer

Index: Van Tinh, Dang; Stadlbauer, Wolfgang Journal of Heterocyclic Chemistry, 2008 , vol. 45, # 6 p. 1695 - 1699

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Abstract

Pyrido [2, 3-d] pyrimidinedione derivatives form a class of fused heterocyclic compounds which reveal interesting pharmacological and biological properties [2]. Isoxazoloand oxadiazoloheterocycles in the quinoline and pyrimidine series were investigated thoroughly in the last decades and many representatives were found to show biological activities [3-7]. These findings prompted us to study the combination of these two biological interesting ...