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ChemInform Abstract: A Facile Synthesis of Pyrimido[2′′,3′′:5′,1′]pyrazolo[3′,4′:4,5]pyrimido[1,6-a]benzimidazoles and [1,2,4]Triazino[3′′,4′′:5′,1′] pyrazolo [3′,4′:4,5] -pyrimido[6,1-a]benzimidazoles.

✍ Scribed by Abdou O. Abdelhamid; Hussein F. Zohdi; Mahmoud M. Ziada

Publisher
John Wiley and Sons
Year
2010
Weight
36 KB
Volume
32
Category
Article
ISSN
0931-7597

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ChemInform Abstract: Facile Synthesis of 6-Aryl-1,3-dimethyl-5H-pyrimido[4,5-b][1,4]diazepine-2,4(1H,3H)-diones.
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## Facile Synthesis of 6-Aryl-1,3-dimethyl-5H-pyrimido[4,5b][1,4]diazepine-2,4(1H,3H)-diones. -A new approach to the regioselective synthesis of the title compounds (IV) starting from readily accessible 6-amino-5-benzylideneaminopyrimidines (I) is described. Condensation of compound (I) with diet