Synthesis of Pyrrolo[2,3-d]pyrimidine-2,4-diones by Sunlight Photolysis of N-(5-Vinyluracil-6-yl)sulfilimines.
✍ Scribed by Nobuaki Matsumoto; Masahiko Takahashi
- Publisher
- John Wiley and Sons
- Year
- 2005
- Weight
- 16 KB
- Volume
- 36
- Category
- Article
- ISSN
- 0931-7597
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## Abstract Possible approaches to synthesis of 5‐methyl‐4‐oxo‐2‐(coumarin‐3‐yl)‐__N__‐aryl‐3,4‐dihydrothieno[2,3‐__d__]pyrimidine‐6‐carboxamides **4** have been discussed. It is shown that the preferable approach is cyclization of 2‐iminocoumarin‐3‐carboxamides **1**, utilizing 5‐amino‐3‐methyl‐__
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