Abstract

Three-component reaction of methyl benzoylpyruvate, aromatic aldehyde, and urea in methanol in the presence of sodium bisulfate stops at the stage of the formation of nondehydrated product with a methylated tertiary hydroxy group and results in methyl 6-aryl-5-benzoyl-4-methoxy-2-oxohexahydropyrimidine-4-carboxylates.

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