Exatecan intermediate 12 is an intermediate for the synthesis of ADC toxin Exatecan. (Rac)-Fidarestat is a potent aldose reductase inhibitor.

Dox-btn2 is a biotinylated derivative of Doxorubicin, with a biotin label at the point of conjugation to doxorubicin at 3'-NH2. Dox-btn2 can be used for cell imaging. While Doxorubicin is mainly accumulated in the nucleus, while Dox-btn2 is mainly located in the cytoplasm.

Highly potent cytotoxic microtubule inhibitor

Trastuzumab emtansine (Ado-Trastuzumab emtansine) is an antibody-drug conjugate (ADC) that incorporates the HER2-targeted antitumor properties of trastuzumab with the cytotoxic activity of the microtubule-inhibitory agent DM1 (derivative of maytansine). Trastuzumab emtansine can be used for the research of advanced breast cancer.

Monomethyl auristatin E (MMAE; Vedotin) is a hot topic in Antibody-drug conjugates (ADCs) studies. It is an antimitotic agent which inhibits cell division by blocking the polymerisation of tubulin.

Calicheamicin, also known as Calicheamicin gamma(1,I) or Calichemicin gamma1, is an potent enediyne antitumor antibiotics derived from the bacterium Micromonospora echinospora. Calicheamicin targets DNA and cause strand scission. Calicheamicin binds with DNA in the minor groove, wherein it then undergos a reaction analogous to the Bergman cyclization to generate a diradical species. This diradical, 1,4-didehydrobenzene, then abstracts hydrogen atoms from the deoxyribose (sugar) backbone of DNA, which ultimately leads to strand scission. The specificity of binding of calicheamicin to the minor groove of DNA is due to the aryltetrasaccharide group of the molecule.

Maytansinoid DM4, a chemical derivative of maytansine, is a potent and selective cytotoxic agent with promising anticancer properties. Anticancer properties of maytansinoids have been attributed to their ability to disrupt microtubule function. Maytansin

MMAF-Ome belongs to ADC, and inhibits several tumor cell lines with IC50s of 0.056 nM, 0.166 nM, 0.183 nM, and 0.449 nM for MDAMB435/5T4, MDAMB361DYT2, MDAMB468, and Raji (5T4-) cell lines, respectively.

Gly-Cyclopropane-Exatecan involves in the synthesis of anti-B7-H4 ADC, containing Exatecan, a DNA Topoisomerase I inhibitor. Gly-Cyclopropane-Exatecan participated in the formation of the ADC hu2F7-Exatecan (compound 34), which showed antitumor activity in vivo and in vitro.

N-​Me-​L-​Ala-​maytansinol is a maytansine derivative. .N-​Me-​L-​Ala-​maytansinol can be used for synthesis of antibody-drug conjugate (ADC).

Maytansine, a benzoansamacrolide, is a highly potent microtubule-targeted compound that induces mitotic arrest and kills tumor cells at subnanomolar concentrations. However, it failed as an anticancer agent in human clinical trials because of lack of tumo

Daunorubicin HCl inhibits both DNA and RNA synthesis and inhibits DNA synthesis with Ki of 0.02 μM.

7-Aminomethyl-10-methyl-11-fluoro camptothecin is a cytotoxin of MC-AAA-NHCH2OCH2COO-7-aminomethyl-10-methyl-11-fluoro camptothecin. 7-Aminomethyl-10-methyl-11-fluoro camptothecin can be used for the synthesis of camptothecin antibody-drug conjugate (ADC).

Mytoxin B is an ADC cytotoxin. Mytoxin B is a satratoxin-type trichothecene macrolide and is similar to the effect of LY294002. Mytoxin B induces cell apoptosis via PI3K/Akt pathway.

Tomaymycin DM, a DNA alkylator, is a derivative of Tomaymycin, it is a PBD dimer, which is attached to tumor targeting antibodies to create antibody-drug conjugates (ADCs).

SC209, an ADC cytotoxin extracted from patent WO2021247798, is used in synthesis of anti-EGFR antibody-drug conjugate ADC.

A cytotoxic agent used in antibody-drug conjugates

Maytansinol inhibits microtubule assembly and induces microtubule disassembly in vitro. Target: Microtubule/Tubulin in vitro: Maytansinol disrupts the mitotic spindle and prevents mitotic exit in Drosophila. Maytansinol reduces the growth and/or survival of HCT116 cells in a dose-dependent manner and that the effect was more severe for p53+/+ than for p53-/- cells at both low and high doses. Maytansinol inhibits the growth of HCT116 human colon cancer cells. Maytansinol induces apoptosis in imaginal discs of wild-type larvae but not p53 mutant larvae. This parallels the finding in human HCT116 cells, in which Maytansinol was more effective when p53 was present, at least at some doses. Maytansinol induces apoptosis in imaginal discs of wild-type larvae but not p53 mutant larvae at 24 hours after exposure to drug.

Duostatin 5 is a potent mitotic inhibitor by inhibiting tubulin polymerization.

CC-885-CH2-PEG1-NH-CH3 is a neoDegrader that can be used in the synthesis of Antibody neoDegrader Conjugate (AnDC).

OSW-1 is a natural anti-enterovirus and anti-cancer compound that targets oxysterol-binding protein (OSBP) with Ki of 26 and 54 nM for OSBP and ORP4L, respectively.

PNU-159682 is a major bioactive metabolite of Nemorubicin in human liver microsomes; > 3,000-fold cytotoxic than its parent compound(MMDX and doxorubicin).

Thailanstatin A is an ultra-potent inhibitor of eukaryotic RNA splicing (IC50=650 nM). Thailanstatin A exerts effects via non-covalent binding to the SF3b subunit of the U2 snRNA subcomplex of the spliceosome and shows low-nM to sub-nM IC50s against multiple cancer cell lines. Thailanstatin A, a payload for ADCs, is conjugated to the lysines on trastuzumab yielding “linker-less” ADC.

Ansamitocin P-3, a potent anti-tumor maytansinoid found in Actinosynnema pretiosum, is a maytansine analog which displays potent cytotoxicity against the human solid tumor cell lines A-549 and HT-29.

Corixetan is a highly efficient thorium chelator. Corixetan can efficiently complex Th-227 with sufficient in vivo stability.

Seco-DUBA is a duocarmycin (DUBA) prodrug containing two hydroxyl groups, which can each be used for coupling to an antibody via a linker. Seco-DUBA can be used in the synthesis of antibody-drug conjugates (ADCs).

DMEA-PNU-159682 (molecule D12) is a ADC cytotoxin molecule including metabolites of nemorubicin (MMDX) from liver microsomes and a potent ADCs cytotoxin PNU-159682.

Azonafide-PEABA is a cytotoxic drug moiety.

Tubulysin IM-1 is an ADC Cytotoxin and tubulin binder used as anti-microtubule toxins.

Seco-DUBA hydrochloride is a toxin for ADC drug SYD985.