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Phosphorus, Sulfur, and Silicon and the Related Elements Volume 158, 2000 - Issue 1
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Original Articles

SYNTHESIS AND TRANSFORMATION OF 2-THIOXOPYRIMIDO [4,5-d]PYRIMIDINES

Rafat M. Shaker Chemistry Department, Faculty of Science, El-Minia University, El-Minia, EGYPT
Pages 9-16 | Received 02 Jun 1999, Accepted 21 Jul 1999, Published online: 04 Oct 2006
 
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Abstract

Synthesis of bicyclic system pyrimido[4,5-d]pyrimidines and its S-mono- and unsymmetrical S.S′-di-substituted deivatives are described.

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