SML2662
SPA70
≥98% (HPLC), human pregnane X receptor antagonist, powder
Synonym(s):
1-(2,5-Dimethoxyphenyl)-4-[[4-(1,1-dimethylethyl)phenyl]sulfonyl]-5-methyl-1H-12,3-triazole, LC-1
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About This Item
Empirical Formula (Hill Notation):
C21H25N3O4S
CAS Number:
Molecular Weight:
415.51
UNSPSC Code:
12352200
NACRES:
NA.77
MDL number:
Product Name
SPA70, ≥98% (HPLC)
SMILES string
[S](=O)(=O)(c2nn[n](c2C)c3c(ccc(c3)OC)OC)c1ccc(cc1)C(C)(C)C
InChI key
OIOPHIFJQXHPAF-UHFFFAOYSA-N
assay
≥98% (HPLC)
form
powder
color
white to beige
solubility
DMSO: 2 mg/mL, clear (warmed)
storage temp.
2-8°C
Related Categories
Biochem/physiol Actions
SPA70 is a cell penetrant, potent and highly selective human pregnane X receptor (hPXR) antagonist that inhibits hPXR in humanized mouse models. It inhibits hPXR-mediated drug metabolism in in primary human hepatocytes and in mouse models.
cell penetrant, potent and highly selective human pregnane X receptor (hPXR) antagonist that inhibits hPXR in humanized mouse models.
Storage Class
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
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Sergio C Chai et al.
Drug discovery today, 24(3), 906-915 (2019-02-08)
The pregnane X receptor (PXR) and the constitutive androstane receptor (CAR) are ligand-activated nuclear receptors (NRs) that are notorious for their role in drug metabolism, causing unintended drug-drug interactions and decreasing drug efficacy. They control the xenobiotic detoxification system by
Combination of Paclitaxel and PXR Antagonist SPA70 Reverses Paclitaxel-Resistant Non-Small Cell Lung Cancer.
Niu, et al.
Cells, 11 (2022)
Wenwei Lin et al.
Nature communications, 8(1), 741-741 (2017-10-01)
Many drugs bind to and activate human pregnane X receptor (hPXR) to upregulate drug-metabolizing enzymes, resulting in decreased drug efficacy and increased resistance. This suggests that hPXR antagonists have therapeutic value. Here we report that SPA70 is a potent and
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