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Furo[3,4-d]pyrimidine-2,4-dione derivatives with antihypertensive activity. Analogues of thienopyrimidine-2,4-diones

โœ Scribed by Jeffery B. Press; James J. McNally; Joan A. Keiser; Steve J. Offord; Laurence B. Katz; Edward Giardino; Robert Falotico; Alfonso J. Tobia


Book ID
103629238
Publisher
Elsevier Science
Year
1989
Tongue
French
Weight
529 KB
Volume
24
Category
Article
ISSN
0223-5234

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๐Ÿ“œ SIMILAR VOLUMES


A convenient synthesis of pyrazolo[3,4-d
โœ M. El Haddad; M. Soukri; S. Lazar; A. Bennamara; G. Guillaumet; M. Akssira ๐Ÿ“‚ Article ๐Ÿ“… 2000 ๐Ÿ› Journal of Heterocyclic Chemistry ๐ŸŒ English โš– 470 KB

## Abstract Pyrazoloโ€[3,4โ€__d__]pyrimidineโ€4,6โ€diones **5** and pyrazolo[4,3โ€__d__]pyrimidineโ€5,7โ€diones **7** were synthesized by Curtius rearrangement of pyrazolic monoโ€esters **2** and **3** followed by heteroโ€cyclization __via__ the ureas derivatives **4** and **6** under alkaline conditions.