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Structures of the covalent hydrates and products of acidic hydrolysis of rheumycin and fervenulin

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Abstract

It is shown that pyrimido[5,4-e]-1,2,4-triazinediones are hydrated at the N(4)-C(4a) bond in aqueous acidic media. The equilibrium constants of these processes were measured by PMR spectroscopy. The structure of the covalent adduct of fervenulin was established by x-ray diffraction analysis. Formic, 5-diazo-3-methylbarbituric, and methylparabanic acids were identified among the products of destruction of the hydrates in acidic media.

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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 12, pp. 1654–1660, December, 1988.

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Shorshnev, S.V., Aleksandrov, G.G., Esipov, S.E. et al. Structures of the covalent hydrates and products of acidic hydrolysis of rheumycin and fervenulin. Chem Heterocycl Compd 24, 1367–1373 (1988). https://doi.org/10.1007/BF00486681

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  • DOI: https://doi.org/10.1007/BF00486681

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