Retraction Note: Synthesis, antimicrobial, anti-inflammatory, antioxidant and cytotoxicity of new pyrimidine and pyrimidopyrimidine derivatives

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Following publication, concerns were raised regarding the reliability of the analytical data, including inconsistencies in the mass spectrometry results (molecular ion assignment and chlorine isotope pattern) and physically implausible reported 1 H– 1 H J-coupling constants. Although the Authors provided revised spectra and explanations, they were unable to supply the original raw NMR and mass spectrometry data for independent verification, and the discrepancies were not satisfactorily resolved. In the absence of verifiable raw data and given the unresolved analytical inconsistencies, the Editors no longer have confidence in the reliability of the results reported in this Article.

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