Samijlenko, S. P. published the artcileSpecific interactions of deprotonated carboxylic group with uracil and thymine provoke diketo → keto-enol tautomeric transition in bases., Related Products of pyrimidines, the publication is Ukrains’kii Biokhimichnii Zhurnal (2001), 73(4), 128-131, database is CAplus.
The H1 NMR and MNDO/H calculation data combined indicate the uracil and thymine tautomeric transitions from the ground diketo tautomeric state to the high-energy keto-enol one stimulated by specific interaction with carboxylate ion in anhydrous DMSO, which is blocked by base methylation at the 1 or 3 positions.
Ukrains’kii Biokhimichnii Zhurnal published new progress about 608-34-4. 608-34-4 belongs to pyrimidines, auxiliary class Pyrimidine,Amide, name is 3-Methylpyrimidine-2,4(1H,3H)-dione, and the molecular formula is C5H6N2O2, Related Products of pyrimidines.
Referemce:
https://pubchem.ncbi.nlm.nih.gov/compound/Pyrimidine,
Pyrimidine – Wikipedia