Synthesis of N-aryl-2-amino-4-oxo-3,4-dihydrothieno[2,3-d]pyrimidine-6-carboxamides
โ Scribed by S. Tumkevicius; M. Dailide
- Publisher
- Journal of Heterocyclic Chemistry
- Year
- 2005
- Tongue
- English
- Weight
- 155 KB
- Volume
- 42
- Category
- Article
- ISSN
- 0022-152X
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๐ SIMILAR VOLUMES
## Abstract Possible approaches to synthesis of 5โmethylโ4โoxoโ2โ(coumarinโ3โyl)โ__N__โarylโ3,4โdihydrothieno[2,3โ__d__]pyrimidineโ6โcarboxamides **4** have been discussed. It is shown that the preferable approach is cyclization of 2โiminocoumarinโ3โcarboxamides **1**, utilizing 5โaminoโ3โmethylโ__
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