GS-443902 trisodium (GS-441524 triphosphate trisodium) 是一种有效的病毒 RNA 依赖的 RNA 聚合酶 (RdRp) 抑制剂，对 RSV RdRp 和 HCV RdRp 的 IC₅₀ 分别为 1.1 µM 和 5 µM。GS-443902 trisodium 是 Remdesivir (GS-5734) 的活性三磷酸盐代谢产物。

GS-443902 trisodium (GS-441524 triphosphate trisodium) is a potent viral RNA-dependent RNA-polymerases (RdRp) inhibitor with IC 50 s of 1.1 μM, 5 μM for RSV RdRp and HCV RdRp, respectively. GS-443902 trisodium is the active triphosphate metabolite of Remdesivir (GS-5734).

Solid

IC50: 1.1 μM (RSV RdRp) and 5 μM (HCV RdRp)

In a continuous 72 h incubation of 1 μM Remdesivir (GS-5734), the GS-443902 trisodium (GS-441524 triphosphate trisodium; Remdesivir metabolite trisodium) level is measured at 2, 24, 48 and 72 h, and reaches a Cmax of 300, 110, and 90 pmol/million cells in macrophages, HMVEC, and HeLa cells lines respectively.
GS-443902 trisodium (compound 8a) is a triphosphates (TP) derivative.
GS-443902 trisodium (NTP; 0.01, 0.1, 1, 10, 100 μM) inhibits RSV RdRp-catalysed RNA synthesis by incorporating into the nascent viral RNA transcript and causing its premature termination. GS-5734 selectively inhibits EBOV replication by targeting its RdRp and inhibiting viral RNA synthesis following efficient intracellular conversion to GS-443902 sodium.
has not independently confirmed the accuracy of these methods.

Remdesivir (GS-5734; 10?mg?kg; i.v.) rapidly distributes into peripheral blood mononuclear cells (PBMCs), and efficient conversion to GS-443902 trisodium (Remdesivir metabolite trisodium; NTP) is apparent within 2?h of dose administration in rhesus monkeys. In PBMCs, GS-443902 trisodium represents the predominant metabolite and is persistent with a t 1/2 of 14?h and levels required for >50% virus inhibition for 24?hours.
has not independently confirmed the accuracy of these methods. They are for reference only.

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[1]. Siegel D, et al. Discovery and Synthesis of a Phosphoramidate Prodrug of a Pyrrolo[2,1-f][triazin-4-amino] Adenine C-Nucleoside (GS-5734) for the Treatment of Ebola and Emerging Viruses. Med Chem. 2017 Mar 9;60(5):1648-1661.
[2]. Warren TK, et al. Therapeutic efficacy of the small molecule GS-5734 against Ebola virus in rhesus monkeys. Nature. 2016 Mar 17;531(7594):381-5.

In Vitro: H₂O : 33.33 mg/mL (55.82 mM; Need ultrasonic)配制储备液