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Synthesis of derivatives of new heterocyclic system 5,7-dioxo(4h,6h)-1,3-dithiolo[4,5-d]pyrimidine on the basis of barbituric acid

✍ Scribed by O. Ya. Neiland; V. Yu. Khodorkovskii; V. Zh. Tilika


Publisher
Springer US
Year
1992
Tongue
English
Weight
514 KB
Volume
28
Category
Article
ISSN
0009-3122

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## Abstract A series of new 1__H__‐pyrazolo[3,4‐__d__]pyrimidin‐4(__5H__)‐one Derivatives **5** has been designed and regio‐selectively synthesized __via__ a tandem aza‐Wittig reaction. The structures of all compounds prepared have been confirmed by ^1^H NMR, IR, EI‐MS spectroscopy and elemental an