Size | Price | Stock | Qty |
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5mg |
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10mg |
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25mg |
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50mg |
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100mg |
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250mg |
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500mg |
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Other Sizes |
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Purity: ≥98%
Fosamprenavir (also known as GW433908; Amprenavir phosphate; GW-433908) is a phosphate ester prodrug of Amprenavir with improved solubility and antiviral effects. It can be used as an anti-HIV drug. Amprenavir (formerly VX-478; trade name Agenerase and Prozei), an FDA approved drug for treating HIV infections, is a potent PXR-selective agonist, and an HIV protease inhibitor with the IC50 of 0.6 nM on HIV-1 protease, it also weakly inhibits HIV-2 protease with IC50 value of 19 nM. In addition, it is reported to be a Cytochrome P450 3A4 Inhibitor. Amprenavir has been effectively used for the treatment of HIV disease in patients with primary HIV infection. It was approved by the FDA on April 15, 1999, for twice-a-day dosing instead of needing to be taken every eight hours.
Targets |
HIV
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ln Vitro |
Amprenavir promotes the specific interactions between the nuclear receptor pregnane X receptor (PXR) and the coactivators SRC-1 and PBP. Amprenavir is docked into the high-resolution crystal structure of human PXR in complex with SR12813. Amprenavir occupies all four subpockets, and its hydroxyl group forms a hydrogen bond with Ser247, which is located in the connection region of PXR, to help to position the drug in the optimal orientation inside the receptor. Amprenavir forms direct contacts with one residue on αAF of the PXR activation function-2 (AF-2) surface, Phe429, which may stabilize the active AF-2 conformation of the receptor and contribute to the agonist activity of amprenavir on PXR. Amprenavir induces the expression of bona fide PXR target genes involved in phase I (CYP3A4), phase II (UGT1A1), and phase III (MDR1) metabolism in both HepaRG cells and LS180 cells.
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ln Vivo |
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Cell Assay |
Amprenavir induced PXR target gene expression in both HepaRG hepatoma cells and LS180 intestinal cells.
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Animal Protocol |
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References |
Molecular Formula |
C25H36N3O9PS
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Molecular Weight |
585.61
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CAS # |
226700-79-4
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Related CAS # |
Fosamprenavir Calcium Salt;226700-81-8;Fosamprenavir-d4;1133702-41-6
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Appearance |
Typically exists as solids (or liquids in special cases) at room temperature
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SMILES |
CC(C)CN(C[C@H]([C@H](CC1=CC=CC=C1)NC(=O)O[C@H]2CCOC2)OP(=O)(O)O)S(=O)(=O)C3=CC=C(C=C3)N
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InChi Key |
MLBVMOWEQCZNCC-OEMFJLHTSA-N
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InChi Code |
InChI=1S/C25H36N3O9PS/c1-18(2)15-28(39(33,34)22-10-8-20(26)9-11-22)16-24(37-38(30,31)32)23(14-19-6-4-3-5-7-19)27-25(29)36-21-12-13-35-17-21/h3-11,18,21,23-24H,12-17,26H2,1-2H3,(H,27,29)(H2,30,31,32)/t21-,23-,24+/m0/s1
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Chemical Name |
[(2R,3S)-1-[(4-aminophenyl)sulfonyl-(2-methylpropyl)amino]-3-[[(3S)-oxolan-3-yl]oxycarbonylamino]-4-phenylbutan-2-yl] phosphate
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Synonyms |
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HS Tariff Code |
2934.99.9001
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Storage |
Powder -20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month |
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Shipping Condition |
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
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Solubility (In Vitro) |
DMSO : ≥ 100 mg/mL (~170.76 mM)
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Solubility (In Vivo) |
Solubility in Formulation 1: ≥ 2.5 mg/mL (4.27 mM) (saturation unknown) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 400 μL PEG300 and mix evenly; then add 50 μL Tween-80 to the above solution and mix evenly; then add 450 μL normal saline to adjust the volume to 1 mL. Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution. Solubility in Formulation 2: ≥ 2.5 mg/mL (4.27 mM) (saturation unknown) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), clear solution. For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of 20% SBE-β-CD physiological saline solution and mix evenly. Preparation of 20% SBE-β-CD in Saline (4°C,1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution. View More
Solubility in Formulation 3: ≥ 2.5 mg/mL (4.27 mM) (saturation unknown) in 10% DMSO + 90% Corn Oil (add these co-solvents sequentially from left to right, and one by one), clear solution. Solubility in Formulation 4: 10% DMSO+40% PEG300+5% Tween-80+45% Saline: ≥ 2.5 mg/mL (4.27 mM) |
Preparing Stock Solutions | 1 mg | 5 mg | 10 mg | |
1 mM | 1.7076 mL | 8.5381 mL | 17.0762 mL | |
5 mM | 0.3415 mL | 1.7076 mL | 3.4152 mL | |
10 mM | 0.1708 mL | 0.8538 mL | 1.7076 mL |
*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.
Calculation results
Working concentration: mg/mL;
Method for preparing DMSO stock solution: mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.
Method for preparing in vivo formulation::Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O,mix and clarify.
(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
(2) Be sure to add the solvent(s) in order.