Abstract
It has been shown that 4-methylthio-, ethoxy-, and methoxyimidazotriazines and imidazotriazin-4-ones, unlike benzo-1,2,3-triazines, do not display cryptodiazonium behavior. A novel type of fission of the triazine ring to give esters and thioesters of 5-aminoimidazole-4-carboxylic acid is described.
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For Communication 14, see [1].
Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 9, pp. 1248–1250, September, 1989.
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Usova, V.K., Selezneva, I.S., Pospelova, T.A. et al. Synthesis and properties of analogs of 5(4)-aminoimidazole-4(5)-carboxamide and purines. 15. Ring opening in imidazo[4,5-d]-1,2,3-triazines. Chem Heterocycl Compd 25, 1045–1047 (1989). https://doi.org/10.1007/BF00487307
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DOI: https://doi.org/10.1007/BF00487307