5,11-Dimethyl-6H-pyrido[4,3-b]carbazol Chemische Eigenschaften,Einsatz,Produktion Methoden
R-Sätze Betriebsanweisung:
R25:Giftig beim Verschlucken.
S-Sätze Betriebsanweisung:
S45:Bei Unfall oder Unwohlsein sofort Arzt zuziehen (wenn möglich, dieses Etikett vorzeigen).
Beschreibung
Ellipticine is an alkaloid isolated from
Apocyanaceae plants that exhibits antitumor activities by intercalating into DNA and/or inhibiting DNA topoisomerase II. It forms covalent adducts in DNA after being enzymatically activated with cytochrome P450 isoforms (
e.g., CYP3A4, CYP1A1, or CYP1A2) or by peroxidases in target tissues. Ellipticine has been shown to inhibit the proliferation of human breast adenocarcinoma MCF-7 cells, leukemia HL-60 and CCRF-CEM cells, neuroblastoma IMR-32, UKF-NB-3, and UKF-NB-4 cells, and U87MG glioblastoma cells with IC
50 values ranging from 0.27-4.7 μM.
Definition
ChEBI: A organic heterotetracyclic compound that is pyrido[4,3-b]carbazole carrying two methyl substituents at positions 5 and 11.
Allgemeine Beschreibung
A topoisomerase II inhibitor. Acts as an intercalative alkaloid that stimulates topoisomerase II-mediated DNA breakage. Is also capable of uncoupling mitochondrial oxidative phosphorylation.
läuterung methode
This DNA intercalator is purified by recrystallisation from CHCl3 or MeOH and is dried in vacuo. The UV max values in aqueous EtOH/HCl are at 241, 249, 307, 335 and 426nm. [Marini-Bettolo & Schmutz Helv Chim Acta 42 2146 1959.] The methiodide has m 360o(dec), with UV (EtOH/KOH) at 223, 242, 251, 311, 362 and 432nm. [Goodwin et al. J Am max Chem Soc 81 1903 1959, Beilstein 23/9 V 417.]
5,11-Dimethyl-6H-pyrido[4,3-b]carbazol Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
