| Identification | More | [Name]
Elacridar | [CAS]
143664-11-3 | [Synonyms]
elacridar
n-[4-[2-(6,7-dimethoxy-3,4-dihydro-1h-isoquinolin-2-yl)ethyl]phenyl]-5-methoxy-9-oxo-10h-acridine-4-carboxamide
GF 120918
N-[4-[2-(6,7-dimethoxy-3,4-dihydro-1H-isoquinolin-2-yl)ethyl]phenyl]-5-methoxy-9-oxo-10H-acridine-4-carboxamide
GG 918
GW 0918
N-[4-[2-(3,4-Dihydro-6,7-dimethoxy-2(1H)-isoquinolinyl)ethyl]phenyl]-9,10-dihydro-5-methoxy-9-oxo-4-acridinecarboxamide | [EINECS(EC#)]
1532714-185-1 | [Molecular Formula]
C34H33N3O5 | [MDL Number]
MFCD00912604 | [Molecular Weight]
563.643 | [MOL File]
143664-11-3.mol |
| Chemical Properties | Back Directory | [Appearance]
Yellow Solid | [Melting point ]
216-218°C | [Boiling point ]
701.6±60.0 °C(Predicted) | [density ]
1.264±0.06 g/cm3(Predicted) | [storage temp. ]
-20°C | [solubility ]
DMSO: soluble2mg/mL (clear solution, warmed) | [form ]
powder | [pka]
12.58±0.70(Predicted) | [color ]
white to beige | [Usage]
A prototypical BCRP inhibitor. Inhibits the Bcrp1-mediated transport. | [InChIKey]
OSFCMRGOZNQUSW-UHFFFAOYSA-N | [SMILES]
C1=C2C(NC3=C(C2=O)C=CC=C3OC)=C(C(NC2=CC=C(CCN3CCC4=C(C3)C=C(OC)C(OC)=C4)C=C2)=O)C=C1 | [CAS DataBase Reference]
143664-11-3(CAS DataBase Reference) |
| Hazard Information | Back Directory | [Chemical Properties]
Yellow Solid | [Uses]
A prototypical BCRP inhibitor. Inhibits the Bcrp1-mediated transport. | [Biological Activity]
elacridar is a potent inhibitor of p-glycoprotein with ic50 values of 193 nm. [1]p-glycoprotein (permeability glycoprotein) is an important membrane protein. it pumps many foreign substances out of cells. p-glycoprotein belongs to the mdr/tap subfamily. p-glycoprotein is transmembrane glycoprotein which is about 170 kda. it is expressed in certain cell types primarily in the pancreas, liver, colon and kidney. it contains 6 transmembrane domains in the n-terminal half of the molecule. it also contains an atp-binding site in the large cytoplasmic domain. p-glycoprotein binds to the substrate at the cytoplasmic side of the protein. when atp binds to the cytoplasmic side, the substrate was excreted from the cell. p-glycoprotein can pump toxins or drugs back into the intestinal lumen, pumps them into bile ducts in liver cells.in some cancer cells, p-glycoprotein is overexpressed. it is involved in multidrug resistance of cancer cells.[2]elacridar can significantly inhibit the activity of p-glycoprotein at 1μm in mdckii cells which overexpress p-glycoprotein.[3] in the parental mdck-ii cells, elacridar at 5μm completely inhibit the polarized sunitinib transport.[4] elacridar did not inhibit the activity of several human cytochromep450 enzymes in vitro. the absolute bioavailability was about 0.47 and 1.3 respectively, when elacridar was given in the orally and microemulsion, intraperitoneally at 10 mg/kg in mice.[3] elacridar also can significantly increase sunitinib brain accumulation levels in mice at 10 mg/kg.[4] | [Biochem/physiol Actions]
GF120918 (Elacridar) is a very potent inhibitor of the ABC transporters MDR-1 (P-gp) and BCRP. GF120918 increases the bioavailability of cytotoxic anti-tumor drugs, and also leads to increased levels of anti-HIV drugs in the brain and CNS. | [in vivo]
Elacridar (100 mg/kg; i.p. once) shows different distribution in brain and plasma[1].
1.19 Plasma Pharmacokinetic Parameters of Elacridar in mice[1]. | Mice
PO 100 mg/kg | Mice
IP 100 mg/kg | Mice
IV 2.5 mg/kg | | CL/F (ml/min) | 2.05 | 33.2 | 0.46 | | Vd/F (liter) | 3.5 | 12.3 | 0.17 | | t1/2 (h) | 20 | 4.3 | 4.4 | | AUC0-inf (μg?min/ml) | 1460 | 90.3 | 161.4 | | F | 0.22 | 0.013 | 1 |
| Animal Model: | FVB wild-type mice[1]. | | Dosage: | 100 mg/kg | | Administration: | Intraperitoneal injection; 100 mg/kg once | | Result: | Showd a higher concertration in brain than plasma except at 4 h after the dose. |
| [References]
[1]. bankstahl jp, bankstahl m, romermann k, wanek t, stanek j, windhorst ad, fedrowitz m, erker t, muller m, loscher w et al: tariquidar and elacridar are dose-dependently transported by p-glycoprotein and bcrp at the blood-brain barrier: a small-animal positron emission tomography and in vitro study. drug metab dispos, 41(4):754-762.
[2]. aller sg, yu j, ward a, weng y, chittaboina s, zhuo r, harrell pm, trinh yt, zhang q, urbatsch il et al: structure of p-glycoprotein reveals a molecular basis for poly-specific drug binding. science 2009, 323(5922):1718-1722.
[3]. sane r, mittapalli rk, elmquist wf: development and evaluation of a novel microemulsion formulation of elacridar to improve its bioavailability. j pharm sci, 102(4):1343-1354.
[4]. tang sc, lagas js, lankheet na, poller b, hillebrand mj, rosing h, beijnen jh, schinkel ah: brain accumulation of sunitinib is restricted by p-glycoprotein (abcb1) and breast cancer resistance protein (abcg2) and can be enhanced by oral elacridar and sunitinib coadministration. int j cancer, 130(1):223-233. |
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