Purine analogue

Short description: Class of antymetabolites for cytostatic chemotherapy

Purine analogues are antimetabolites that mimic the structure of metabolic purines.

## Examples

* Nucleobase analogues
* Thiopurines such as thioguanine are used to treat acute leukemias and remissions in acute granulocytic leukemias.
* Azathioprine is the main immunosuppressive cytotoxic substance. A prodrug, it is widely used in transplantation to control rejection reactions. It is nonenzymatically cleaved to mercaptopurine, a purine analogue that inhibits DNA synthesis. By preventing the clonal expansion of lymphocytes in the induction phase of the immune response, it affects both cell immunity and humoral immunity. It also successfully suppresses autoimmunity.
* Mercaptopurine
* Thioguanine
* Nucleoside analogues
* Clofarabine
* Pentostatin and cladribine are adenosine analogs that are used primarily to treat hairy cell leukemia.
* Nucleotide analogues
* Fludarabine inhibits multiple DNA polymerases, DNA primase, and DNA ligase I, and is S phase-specific (since these enzymes are highly active during DNA replication).

* Purine

* Mercaptopurine

* Thioguanine

* Fludarabine

## Medical uses

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

## References

1. ↑ 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. PMID 19476376.

* v
* t
* e

DNA virus antivirals (primarily J05, also S01AD and D06BB)

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
* Sorivudine

* [[Chemistry:Cytocytosine (Cytarabine|Cytarabine]])

Not TK activated|

* Foscarnet

Other|

* Docosanol
* early protein (Fomivirsen)
* Tromantadine

HPV/MC|

* Imiquimod/Resiquimod
* Podophyllotoxin

Vaccinia|

* assembly: Rifampicin

Poxviridae|

* Methisazone

Hepatitis B (VII)|

* Nucleoside analogues/NARTIs: Entecavir#
* Lamivudine
* Telbivudine
* Clevudine

* Nucleotide analogues/NtRTIs: Adefovir
* Tenofovir disoproxil
* Tenofovir alafenamide

Multiple/general|

| Nucleic acid inhibitors|

* Cidofovir

|

Interferon|

* Interferon alfa 2b
* Peginterferon alfa-2a

Multiple/unknown|

* Ribavirin#/Taribavirin†
* Moroxydine

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* ‡Withdrawn from market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

* v
* t
* e

Nucleic acid constituents

Nucleobase|

* Purine
* Adenine
* Guanine
* Hypoxanthine
* Xanthine
* Purine analogue
* Pyrimidine
* Uracil
* Thymine
* Cytosine
* Pyrimidine analogue
* Unnatural base pair (UBP)

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

Nucleoside diphosphate|

* ADP
* GDP
* m5UDP
* UDP
* CDP

* dADP
* dGDP
* dTDP
* dUDP
* dCDP

Nucleoside triphosphate|

* ATP
* GTP
* m5UTP
* UTP
* CTP
* ITP
* XTP

* dATP
* dGTP
* dTTP
* dUTP
* dCTP
* dITP
* dXTP

* v
* t
* e

Purine receptor modulators

Receptor
(ligands)|

| P0 (adenine)|

* Agonists: 8-Aminoadenine
* Adenine

|

(adenosine)|

* Agonists: 2-(1-Hexynyl)-N-methyladenosine
* 2-Cl-IB-MECA
* 2'-MeCCPA
* 4'-O-β-D-Glucosyl-9-O-(6''-deoxysaccharosyl)olivil
* 5'-N-ethylcarboxamidoadenosine
* Adenosine
* ADP
* AMP
* Apadenoson
* ATL-146e
* ATP
* BAY 60–6583
* Binodenoson
* Capadenoson
* CCPA
* CGS-21680
* CP-532,903
* Evodenoson
* GR 79236
* LUF-5835
* LUF-5845
* N6-Cyclopentyladenosine
* Namodenoson
* Neladenoson dalanate
* Piclidenoson
* Regadenoson
* SDZ WAG 994
* Selodenoson
* Sonedenoson
* Tecadenoson
* UK-432,097

* Antagonists: 8-Chlorotheophylline
* 8-Phenyl-1,3-dipropylxanthine
* 8-Phenyltheophylline
* Acefylline
* Aminophylline
* ATL-444
* Bamifylline
* Cafedrine
* Caffeine
* Caffeine citrate
* Cartazolate
* CGH-2466
* CGS-15943
* Choline theophyllinate
* Ciforadenant
* CPX
* CVT-6883
* Dimethazan
* DMPX
* DPCPX
* Dyphylline
* Enprofylline
* Etazolate
* Fenethylline
* IBMX
* Isovaleric acid
* Istradefylline
* KF-26777
* MRE3008F20
* MRS-1220
* MRS-1334
* MRS-1706
* MRS-1754
* MRS-3777
* Paraxanthine
* Pentoxifylline
* Preladenant
* Propentofylline
* Proxyphylline
* PSB-10
* PSB-11
* PSB-36
* PSB-603
* PSB-788
* PSB-1115
* Reversine
* Rolofylline
* SCH-442,416
* SCH-58261
* Theacrine
* Theobromine
* Theodrenaline
* Theophylline
* Tozadenant
* Tracazolate
* VUF-5574
* ZM-241,385

(nucleotide)|

| P2X
(ATP)|

* Agonists: 2-Me-SATP
* α,β-Me-ATP
* Adenosine
* ADP
* AMP
* Ap4A
* Ap5A
* ATP
* ATPγS
* BzATP
* Cibacron blue
* CTP
* D-β,γ-Me-ATP
* GTP
* HT-AMP
* Ivermectin
* L-β,γ-Me-ATP
* MRS-2219
* PAPET-ATP
* UTP
* Zinc

* Antagonists: 5-BDBD
* A-317491
* A-438079
* A-740003
* A-804598
* A-839977
* AF-353
* AZ-10606120
* AZ-11645373
* BBG
* Calcium
* Calmidazolium
* Chelerythrine
* Copper
* Emodin (Rheum officinale)
* Evans Blue
* Gefapixant
* GW-791343
* HMA
* Ip5I
* isoPPADS
* JNJ-47965567
* KN-04
* KN-62
* Magnesium
* MRS-2159
* NF-023
* NF-110
* NF-157
* NF-279
* NF-449
* Opiranserin (VVZ-149)
* Oxidized-ATP
* Phenol Red
* Phenolphthalein
* PPADS
* PPNDS
* PSB-12062
* Puerarin (Radix puerariae)
* Purotoxin 1
* RB-2
* Ro 0437626
* Ro 51
* RO-3
* Sodium ferulate (Angelica sinensis, Ligusticum wallichii)
* Suramin
* TC-P 262
* Tetramethylpyrazine (ligustrazine) (Ligusticum wallichii)
* TNP-ATP
* Zinc

|

P2Y|

* Agonists: 2-Me-SADP
* 2-Me-SATP
* 2-Thio-UTP
* 5-Br-UDP
* 5-OMe-UDP
* α,β-Me-ATP
* Adenosine
* ADP
* ADPβS
* Ap3A
* AR-C 67085MX
* ATP
* ATPγS
* CTP
* dATP
* Denufosol
* Diquafosol
* IDP
* ITP
* INS-365
* INS-37217
* MRS-2365
* MRS-2690
* MRS-2693
* MRS-2768
* MRS-2957
* MRS-4062
* NF-546
* PAPET-ATP
* PSB-0474
* PSB-1114
* UDP
* UDPβS
* UDP-galactose
* UDP-glucose
* UDP-N-acetylglucosamine
* Up3U
* UTP
* UTPγS

* Antagonists: 2-Me-SAMP
* A3P5PS
* AMPαS
* Ap4A
* AR-C 66096
* AR-C 67085MX
* AR-C 69931MX
* AR-C 118925XX
* ATP
* BzATP
* C1330-7
* Cangrelor
* Clopidogrel
* Elinogrel
* Ip5I
* MRS-2179
* MRS-2211
* MRS-2279
* MRS-2395
* MRS-2500
* MRS-2578
* NF-157
* NF-340
* PIT
* PPADS
* Prasugrel
* PSB-0739
* RB-2
* Regrelor
* Suramin
* Ticagrelor
* Ticlopidine
* UDP

Transporter
(blockers)|

| CNTs|

* 6-Hydroxy-7-methoxyflavone
* Adenosine
* dMeThPmR
* Estradiol
* KGO-2142
* KGO-2173
* MeThPmR
* Phloridzin
* Progesterone

|

ENTs|

* Barbiturates
* Benzodiazepines
* Cilostazol
* Dilazep
* Dipyridamole
* Estradiol
* Ethanol
* Hexobendine
* NBMPR
* Pentoxifylline
* Progesterone
* Propentofylline

PMAT|

* Decynium-22

Enzyme
(inhibitors)|

| XO|

* 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|

* Precursors: Adenine
* Adenosine
* AMP
* ADP
* ATP
* Cytosine
* Cytidine
* CMP
* CDP
* CTP
* Guanine
* Guanosine
* GMP
* GDP
* GTP
* Hypoxanthine
* Inosine
* IMP
* IDP
* ITP
* Ribose
* Uracil
* Uridine
* UMP
* UDP
* UTP

* Others: Chrysophanol (rhubarb)

See also: Receptor/signaling modulators

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*[ATP]: Adenosine triphosphate
*[CNTs]: Concentrative nucleoside transporters
*[ENTs]: Equilibrative nucleoside transporters
*[PMAT]: Plasma membrane monoamine transporter
*[XO]: Xanthine oxidase