Camptothecin-d₅  (Synonyms: Campathecin-d₅; (S)-(+)-Camptothecin-d₅; CPT-d₅)

Camptothecin-d₅ is the deuterium labeled Camptothecin. Camptothecin (CPT), a kind of alkaloid, is a DNA topoisomerase I (Topo I) inhibitor with an IC50 of 679 nM[1]. Camptothecin (CPT) exhibits powerful antineoplastic activity against colorectal, breast, lung and ovarian cancers, modulates hypoxia-inducible factor-1α (HIF-1α) activity by changing microRNAs (miRNA) expression patterns in human cancer cells[2][3].

氢、碳和其他元素的稳定重同位素已被掺入药物分子中，主要用作药物开发过程中定量的示踪剂。氘代因其可能影响药物的药代动力学和代谢特征而受到关注^[1]。

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

353.38

C₂₀H₁₁D₅N₂O₄

1329616-37-6

7689-03-4

固体

Off-white to light yellow

喜树碱 d₅

Room temperature in continental US; may vary elsewhere.

-20°C, protect from light, stored under nitrogen

*In solvent : -80°C, 6 months; -20°C, 1 month (protect from light, stored under nitrogen)

• [1]. Russak EM, et al. Impact of Deuterium Substitution on the Pharmacokinetics of Pharmaceuticals. Ann Pharmacother. 2019;53(2):211-216.  [Content Brief]

  [2]. Luzzio MJ, et al. Synthesis and antitumor activity of novel water soluble derivatives of camptothecin as specific inhibitors of topoisomerase I. Synthesis and antitumor activity of novel water soluble derivatives of camptothecin as specific inhibitors of topoisomerase I.  [Content Brief]

  [3]. Bertozzi D, et al. The natural inhibitor of DNA topoisomerase I, camptothecin, modulates HIF-1α activity by changing miR expression patterns in human cancer cells. Mol Cancer Ther. 2014;13(1):239-248.  [Content Brief]

  [4]. Huang Q, et al. Evolution in medicinal chemistry of E-ring-modified Camptothecin analogs as anticancer agents. Eur J Med Chem. 2013;63:746-757.  [Content Brief]

  [5]. Tesauro C, et al. Topoisomerase I activity and sensitivity to camptothecin in breast cancer-derived cells: a comparative study. BMC Cancer. 2019;19(1):1158. Published 2019 Nov 29.  [Content Brief]

  [6]. Schön M, et al. KINK-1, a novel small-molecule inhibitor of IKKbeta, and the susceptibility of melanoma cells to antitumoral treatment. J Natl Cancer Inst. 2008;100(12):862-875..  [Content Brief]