The structure of 5,5,6-trihydroxy-6-methyldihydropyrimidine-2,4(1H,3H)-dione (2) was proven using 13C, 1H, and 15N NMR spectroscopy. A new form (2a) was detected and shown to have a structure similar to dione 2.
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Translated from Zhurnal Prikladnoi Spektroskopii, Vol. 89, No. 2, pp. 170–176, March–April, 2022. https://doi.org/10.47612/05147506202289170176.
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Petrova, S.F., Nugumanov, T.R., Lobov, A.N. et al. An NMR Spectral Study of the Structure of 5,5,6-trihydroxy-6-methyldihydropyrimidine-2,4-(1H,3H)-dione in DMSO-d6. J Appl Spectrosc 89, 225–231 (2022). https://doi.org/10.1007/s10812-022-01347-z
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DOI: https://doi.org/10.1007/s10812-022-01347-z