Fludarabine triphosphate (F-ara-ATP), the cytotoxic metabolite of Fludarabine phosphate, inhibits ribonucleotide reductase and DNA polymerase and ultimately leads to cellular apoptosis.

2'-O,4'-C-Methyleneadenosine (LNA-A) is a locked nucleic acid (LNA) and is also an adenosine analog.

6-Mercaptopurine-13C2,15N (Mercaptopurine-13C2,15N) is the 13C- and 15N-labeled 6-Mercaptopurine. 6-Mercaptopurine is a purine analogue which acts as an antagonist of the endogenous purines and has been widely used as antileukemic agent and immunosuppressive drug.

Tipiralacil(TPI) is a thymidine phosphorylase inhibitor (TPI). Tipiracil is one of the active components in TAS-102, which is an anticancer drug candidate currently in clinical trials.

Zebularine (NSC309132, 4-Deoxyuridine) is a nucleoside analog of cytidine and inhibitor of cytidine deaminase, also inhibits DNA methylation and tumor growth both in vitro and in vivo.

Thymidine Phosphorylase inhibitor 8g (hTP inhibitor 8g) is a novel potent, selective inhibitor of human thymidine phosphorylase (hTP) with IC50 of 0.12 uM; induces DNA damage measured with the alkaline comet assay in HepG2 cells; hTP inhibitor 8g (50 mg/kg/day) for two weeks (5 days/week) significantly reduced tumor growth using an in vivo glioblastoma model.

3-Deazauridine (DAU, NSC 126849) is a nucleoside analog that competitively inhibits cytidine triphosphate synthetase (CTP).3-Deazauridine inhibits the growth of L1210 leukemia cells when used at a concentration of 6 µM and dose-dependently reduces mortality in a mouse model of leukemia.3-Deazauridine selectively suppresses cell viability in a MYC-dependent manner in ARPE-19 cells.3-Deazauridine causes selective replication stress in MYC-overexpressing cells, which originates from MYC-driven rRNA synthesis.3-Deazauridine combined with ATR inhibitor BAY-1895344 induces synthetic lethality to MYC-overexpressing cells, and suppresses tumor growth in 3D assays and in vivo.

Bis-Pro-5FU (Compound 4) is a 5-FU precursor that confers oral bioavailability and increase the safety profile of 5-Fluorouracil (5-FU) chemotherapy regimens. 5-FU is an antineoplastic antimetabolite that is widely used for the research of colorectal and pancreatic cancer.

Tegafur (also known as Ftorafur) is a chemotherapeutic 5-FU prodrug used in the treatment of cancers; is a component of tegafur-uracil.

Flurocitabine is a fluorinated anlydride analog of cytosine arabinoside, partially hydrolysecl in vivo into two active antitumor substances (arabinosyl-tluorocytosine (ara-FC) and arabinosyl-fluorouracil (ara-FU)). Flurocitabine has antitumor activity during phase I studies in acute leukemia and solid tumors.

Gemcitabine elaidate (CP-4126) hydrochloride is lipophilic pro-drug of Gemcitabine. Gemcitabine elaidate hydrochloride is converted to Gemcitabine by esterases in order to be phosphorylated. Gemcitabine elaidate hydrochloride exhibits anti-tumor activity.

Fostroxacitabine bralpamide (MIV-818) is an orally active Troxacitabine-based nucleotide prodrug. Fostroxacitabine bralpamide has anticancer effects.

5'-O-DMT-rU is a modified nucleoside and can be used to synthesize RNA.

3'-Deoxyuridine-5'-triphosphate trisodium (3'-dUTP trisodium) is a nucleotide analogue that inhibits DNA-dependent RNA polymerases I and II. 3'-Deoxyuridine-5'-triphosphate trisodium strongly and competitively inhibits the incorporations of UTP into RNA with a Ki value of 2.0 μM.

Adenosine 5′-monophosphoramidate sodium is an adenosine derivative and can be used as an intermediate for nucleotide synthesis. Adenosine 5′-monophosphoramidate has a significant effect on the accumulation of cyclic AMP.

6-Azathymine, a 6-nitrogen analog of thymine, is a potent D-3-aminoisobutyrate-pyruvate aminotransferase inhibitor. 6-Azathymine inhibits the biosynthesis of DNA, and has antibacterial and antiviral activities.

3'-Deoxyuridine-5'-triphosphate (3'-dUTP) is a nucleotide analogue that inhibits DNA-dependent RNA polymerases I and II. 3'-Deoxyuridine-5'-triphosphate strongly and competitively inhibits the incorporations of UTP into RNA with a Ki value of 2.0 μM.

Adenosine Dialdehyde, a purine nucleoside analogue, is an irreversible inhibitor of S-adenosylhomocysteine hydrolase (SAH) (IC50=40 nM). Adenosine Dialdehyde exhibits potent anti-tumor activity in vivo and can be used for the cancer research.

Peldesine (BCX 34) dihydrochloride is a potent, competitive, reversible and orally active purine nucleoside phosphorylase (PNP) with IC50s of 36 nM, 5 nM, and 32 nM for human, rat, and mouse red blood cell (RBC) PNP, respectively. Peldesine dihydrochloride is also a T-cell proliferation with an IC50 of 800 nM. Peldesine dihydrochloride has the potential for cutaneous T-cell lymphoma, psoriasis and HIV infection treatment.

(Rac)-Plevitrexed ((Rac)-ZD 9331; (Rac)-BGC9331) is a racemate of Plevitrexed. Plevitrexed is an orally active and potent thymidylate synthase (TS) inhibitor.

Plevitrexed (ZD 9331; BGC 9331) is an orally active and potent thymidylate synthase (TS) inhibitor with a Ki of 0.44 nM. Plevitrexed is taken up via the α-folate receptor as well as the reduced folate carrier. Plevitrexed is used for gastric cancer in clinical.

Sapacitabine is an orally bioavailable pyrimidine analogue prodrug with potential antineoplastic activity.

Gemcitabine(Gemzar) belongs to the group of medicines called antimetabolites.

Elacytarabine (CP-4055, CP4055) is a fatty acid derivative of cytarabine with potential antineoplastic activity.

A naturally occurring nucleoside analog that possesses antitumor activity, also is a potent and efficacious readthrough agent.

5-Fluorouracil is a potent antitumor agent that affects pyrimidine synthesis by inhibiting thymidylate synthetase thus depleting intracellular dTTP pools.