Pyrimidine analogues are antimetabolites which mimic the structure of metabolic pyrimidines.

Examples

Examples include:

• 5-fluorouracil (5FU) which inhibits thymidylate synthase.
• Floxuridine (FUDR)
• Cytosine arabinoside (Cytarabine)

<gallery> Image:Pyrimidin.svg|Pyrimidine Image:Fluorouracil.svg|Fluorouracil Image:Floxuridine.png|Floxuridine Image:Gemcitabine.png|Gemcitabine </gallery>

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