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Pyrimidine analogue

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Chemicals that inhibit the use of a metabolite

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Pyrimidine analogues areantimetabolites which mimic the structure of metabolicpyrimidines.

Examples

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Nucleobase analogues
- Fluorouracil (5FU), which inhibitsthymidylate synthase
- Floxuridine (FUDR)
- 6-azauracil (6-AU)
Nucleoside analogues
- Cytarabine (Cytosine arabinoside)
- Gemcitabine
Nucleotide analogues

Medical uses

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Pyrimidine antimetabolites are commonly used to treat cancer by interfering with DNA replication.^[1]

References

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^Parker, William B. (2009)."Enzymology of Purine and Pyrimidine Antimetabolites Used in the Treatment of Cancer".Chem Rev.109 (7):2880–2893.doi:10.1021/cr900028p.PMC 2827868.PMID 19476376.

Intracellularchemotherapeutic agents /antineoplastic agents (L01)

SPs/MIs
(M phase)

Blockmicrotubule assembly	Vinca alkaloids (Vinblastine^# Vincristine^# Vindesine Vinflunine^§ Vinorelbine^#)
Block microtubule disassembly	Taxanes (Cabazitaxel Docetaxel^# Larotaxel Ortataxel^† Paclitaxel^# Tesetaxel) Epothilones (Ixabepilone)

DNA replication
inhibitor

DNA precursors/
antimetabolites
(S phase)

Folic acid	Dihydrofolate reductase inhibitor (Aminopterin Methotrexate^# Pemetrexed Pralatrexate) Thymidylate synthase inhibitor (Pemetrexed Raltitrexed)
Purine	Adenosine deaminase inhibitor (Pentostatin) Halogenated/ribonucleotide reductase inhibitors (Cladribine^# Clofarabine Fludarabine^#) Nelarabine Rabacfosadine Thiopurine (Mercaptopurine^# Tioguanine^#)
Pyrimidine	Thymidylate synthase inhibitor (Capecitabine^# Carmofur Doxifluridine Floxuridine Fluorouracil^# Tegafur (+gimeracil/oteracil)) DNA polymerase inhibitor (Cytarabine^#+daunorubicin) Ribonucleotide reductase inhibitor (Gemcitabine^#) Hypomethylating agent (Azacitidine Decitabine)
Deoxyribonucleotide	Ribonucleotide reductase inhibitor (Hydroxycarbamide^#)

Topoisomerase inhibitors
(S phase)

I	Camptotheca (Belotecan Camptothecin Cositecan^† Etirinotecan pegol^† Exatecan Gimatecan Irinotecan^# Lurtotecan^‡ Rubitecan^‡ Silatecan^§ Topotecan)
II	Podophyllum (Etoposide^# Teniposide)
II+Intercalation	Anthracyclines (Aclarubicin Amrubicin^† Daunorubicin^# (+cytarabine) Doxorubicin^# Epirubicin Idarubicin Pirarubicin Valrubicin Zorubicin) Anthracenediones (Losoxantrone Mitoxantrone Pixantrone) Amsacrine Bisantrene Crisnatol Menogaril^§

Crosslinking of DNA
(CCNS)

Alkylating	Nitrogen mustards:Bendamustine^# Chlormethine Cyclophosphamide^# (Ifosfamide^# Trofosfamide) Chlorambucil^# Melphalan (Melphalan flufenamide) Prednimustine Uramustine Nitrosoureas:Carmustine Fotemustine Lomustine (Semustine) Nimustine Ranimustine Streptozocin Alkyl sulfonates:Busulfan (Mannosulfan Treosulfan) Aziridines:Carboquone Thiotepa Triaziquone Triethylenemelamine
Platinum-based	Carboplatin^# Cisplatin^# Dicycloplatin Nedaplatin Oxaliplatin^# Satraplatin
Nonclassical	Altretamine Hydrazines (Procarbazine^#) Etoglucid Mitobronitol Pipobroman Triazenes (Dacarbazine^# Mitozolomide^§ Temozolomide)
Intercalation	Streptomyces (Dactinomycin^# Bleomycin^# (Pingyangmycin) Ixabepilone Mitomycin Plicamycin Utidelone)

Photosensitizers/PDT

Other

Enzyme inhibitors	FI (Tipifarnib^§) CDK inhibitors (Abemaciclib Alvocidib^† Palbociclib Ribociclib Seliciclib^†) PrI Bortezomib^# Carfilzomib Oprozomib Ixazomib PhI (Anagrelide) IMPDI (Tiazofurin^§) LI (Masoprocol) PARP inhibitor (Fuzuloparib Niraparib +abiraterone acetate Olaparib Rucaparib) HDAC (Belinostat Entinostat Panobinostat Romidepsin Vorinostat) PIKI (Pi3K) (Alpelisib Copanlisib^‡ Duvelisib Idelalisib Inavolisib Umbralisib^‡) IDH (Enasidenib Ivosidenib Olutasidenib Vorasidenib)
Receptor antagonists	ERA (Atrasentan) Retinoid X receptor (Bexarotene) Sex steroid (Testolactone)
Other/ungrouped	Adagrasib Aflibercept Arsenic trioxide^# (Realgar/Indigo naturalis^#) Asparagine depleters (Asparaginase^#/Pegaspargase) Axicabtagene ciloleucel Belzutifan Bexarotene Brexucabtagene autoleucel Calaspargase pegol Celecoxib Ciltacabtagene autoleucel Darinaparsin Demecolcine Denileukin diftitox Eflornithine Elesclomol^§ Elsamitrucin Epacadostat Eribulin Estramustine Glasdegib Idecabtagene vicleucel Idroxioleic acid Imetelstat Lifileucel Lisocabtagene maraleucel Lonidamine Lucanthone Lurbinectedin Mitoguazone Mitotane Nadofaragene firadenovec Navitoclax Nirogacestat Obecabtagene autoleucel Oblimersen^† Omacetaxine mepesuccinate Para-toluenesulfonamide Pelabresib Plitidepsin Retinoids (Alitretinoin Tretinoin^#) Selinexor Sitimagene ceradenovec Sotorasib Tabelecleucel Tagraxofusp Talimogene laherparepvec Tazemetostat Tebentafusp Tiazofurine Tigilanol tiglate Tisagenlecleucel Trabectedin Veliparib Venetoclax Verdinexor Vosaroxin

^#WHO-EM
^‡Withdrawn from market
Clinical trials:
- ^†Phase III
- ^§Never to phase III

DNA virus antivirals (primarilyJ05, alsoS01AD andD06BB)

Baltimore I

Herpesvirus

DNA-synthesis
inhibitor

TK activated

Purine analogue	guanine (Aciclovir^#/Valaciclovir Ganciclovir/Valganciclovir^# Penciclovir/Famciclovir) adenine (Vidarabine)
Pyrimidine analogue	uridine (Idoxuridine Trifluridine (+tipiracil) Edoxudine) thymine Brivudine FV-100^† Sorivudine^‡

Not TK activated

Foscarnet

Other

HPV/MC

Vaccinia

assembly:Rifampicin

Poxviridae

Hepatitis B (VII)

Nucleoside analogues/NARTIs:Entecavir^#
Lamivudine
Lobucavir^†
Telbivudine
Clevudine

Multiple/general

Nucleic acid inhibitors	Cidofovir Brincidofovir
Interferon	Interferon alfa 2b Peginterferon alfa-2a^#
Multiple/unknown	Filociclovir^† Ribavirin^#/Taribavirin^† Moroxydine

^#WHO-EM
^‡Withdrawn from market
Clinical trials:
- ^†Phase III
- ^§Never to phase III

Nucleic acid constituents

Nucleobase

Nucleoside

Ribonucleoside	Adenosine Guanosine 5-Methyluridine Uridine 5-Methylcytidine Cytidine Pseudouridine Inosine N⁶-Methyladenosine Xanthosine Wybutosine
Deoxyribonucleoside	Deoxyadenosine Deoxyguanosine Thymidine Deoxyuridine Deoxycytidine Deoxyinosine Deoxyxanthosine

Nucleotide
(Nucleoside monophosphate)

Ribonucleotide	AMP GMP m⁵UMP UMP CMP IMP XMP
Deoxyribonucleotide	dAMP dGMP dTMP dUMP dCMP dIMP dXMP
Cyclic nucleotide	cAMP cGMP c-di-GMP c-di-AMP cADPR cGAMP

Nucleoside diphosphate

ADP GDP m⁵UDP UDP CDP Xanthosine diphosphate
dADP dGDP dTDP dUDP dCDP

Nucleoside triphosphate

ATP GTP m⁵UTP UTP CTP ITP XTP
dATP dGTP dTTP dUTP dCTP dITP dXTP

Purine receptor modulators

Receptor
(ligands)

P0 (adenine)

Agonists:8-Aminoadenine
Adenine

P1
(adenosine)

P2
(nucleotide)

P2X
(ATPTooltip Adenosine triphosphate)

P2Y

Transporter
(blockers)

CNTsTooltip Concentrative nucleoside transporters	6-Hydroxy-7-methoxyflavone Adenosine dMeThPmR Estradiol KGO-2142 KGO-2173 MeThPmR Phloridzin Progesterone
ENTsTooltip Equilibrative nucleoside transporters	Barbiturates Benzodiazepines Cilostazol Dilazep Dipyridamole Estradiol Ethanol Hexobendine NBMPR Pentoxifylline Progesterone Propentofylline
PMATTooltip Plasma membrane monoamine transporter	Decynium-22

Enzyme
(inhibitors)

XOTooltip Xanthine oxidase	Allopurinol Amflutizole Benzbromarone Caffeic acid Cinnamaldehyde Cinnamomum osmophloeum Febuxostat Myo-inositol Kaempferol Myricetin Niraxostat Oxipurinol Phytic acid Pistacia integerrima Propolis Quercetin Tisopurine Topiroxostat
Others	Aminopterin Azathioprine Methotrexate Mycophenolic acid Pemetrexed Pralatrexate Many others

Others

Others:Chrysophanol (rhubarb)

See also:Receptor/signaling modulators

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