Question: In the pyrimidine degradative pathway, all pyrimidines undergo conversion to uracil, which undergoes an NADPH-dependent reduction. Show plausible reactions leading from cytidine, cytosine, and uridine

In the pyrimidine degradative pathway, all pyrimidines undergo conversion to uracil, which undergoes an NADPH-dependent reduction. Show plausible reactions leading from cytidine, cytosine, and uridine to uracil, and write a plausible structure for the product of uracil reduction (dihydrouracil).

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