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Fosamprenavir Calcium Salt

Prodrug of antiretroviral protease inhibitor amprenavir CAS# 226700-81-8

Fosamprenavir Calcium Salt

Catalog No. BCC1581----Order now to get a substantial discount!

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Chemical structure

Fosamprenavir Calcium Salt

3D structure

Chemical Properties of Fosamprenavir Calcium Salt

Cas No. 226700-81-8 SDF Download SDF
PubChem ID 131535 Appearance Powder
Formula C25H34CaN3O9PS M.Wt 623.67
Type of Compound N/A Storage Desiccate at -20°C
Synonyms GW433908G
Solubility DMSO : 1.8 mg/mL (2.89 mM; Need ultrasonic and warming)
H2O : 0.25 mg/mL (0.40 mM; Need ultrasonic and warming)
Chemical Name calcium;[(2R,3S)-1-[(4-aminophenyl)sulfonyl-(2-methylpropyl)amino]-3-[[(3S)-oxolan-3-yl]oxycarbonylamino]-4-phenylbutan-2-yl] phosphate
SMILES CC(C)CN(CC(C(CC1=CC=CC=C1)NC(=O)OC2CCOC2)OP(=O)([O-])[O-])S(=O)(=O)C3=CC=C(C=C3)N.[Ca+2]
Standard InChIKey PMDQGYMGQKTCSX-HQROKSDRSA-L
Standard InChI InChI=1S/C25H36N3O9PS.Ca/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);/q;+2/p-2/t21-,23-,24+;/m0./s1
General tips For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.Stock solution can be stored below -20℃ for several months.
We recommend that you prepare and use the solution on the same day. However, if the test schedule requires, the stock solutions can be prepared in advance, and the stock solution must be sealed and stored below -20℃. In general, the stock solution can be kept for several months.
Before use, we recommend that you leave the vial at room temperature for at least an hour before opening it.
About Packaging 1. The packaging of the product may be reversed during transportation, cause the high purity compounds to adhere to the neck or cap of the vial.Take the vail out of its packaging and shake gently until the compounds fall to the bottom of the vial.
2. For liquid products, please centrifuge at 500xg to gather the liquid to the bottom of the vial.
3. Try to avoid loss or contamination during the experiment.
Shipping Condition Packaging according to customer requirements(5mg, 10mg, 20mg and more). Ship via FedEx, DHL, UPS, EMS or other couriers with RT, or blue ice upon request.

Biological Activity of Fosamprenavir Calcium Salt

DescriptionGW433908 is a phosphate ester prodrug of the antiretroviral protease inhibitor amprenavir, with improved solubility over the parent molecule and a potential for reduced pill burden on current dosing regimens; GW433908G is the calcium salt of the prodrug. IC50 Value: Target: HIV Protease in vitro: There were no significant changes in buprenorphine or PI plasma levels and no significant changes in medication adverse effects or opioid withdrawal. Increased concentrations of the inactive metabolite buprenorphine-3-glucuronide suggested that darunavir-ritonavir and fosamprenavir-ritonavir induced glucuronidation of buprenorphine[1]. in vivo: Fosamprenavir-ritonavir administered with methadone did not alter plasma amprenavir pharmacokinetics compared with historical control data; nor did it alter the unbound R-methadone at 2 and 6 hours after methadone dosing. Pharmacodynamic indexes remained essentially unchanged after adding fosamprenavir-ritonavir to methadone [2]. After a high-fat meal compared with fasting, (1) the bioavailability of GW433908G suspension was decreased by 20% and Cmax by 41%, and (2) for GW433908G tablets, there was no influence on AUC(12% lower Cmax). After a low-fat meal compared with fasting, (1) there was bioequivalence for GW433908G tablets, but (2) bioavailability was decreased by 23% for amprenavir capsules (Cmax was also lower, by 46%) [3]. Clinical trial: Study of an Investigational Regimen Including FDA Approved HIV Drugs In HIV-Infected Pediatric Subjects. Phase 2

References:
[1]. Gruber VA, Rainey PM, Moody DE, Interactions between buprenorphine and the protease inhibitors darunavir-ritonavir and fosamprenavir-ritonavir. Clin Infect Dis. 2012 Feb 1;54(3):414-23. [2]. Cao YJ, Smith PF, Wire MB, Pharmacokinetics and pharmacodynamics of methadone enantiomers after coadministration with fosamprenavir-ritonavir in opioid-dependent subjects. Pharmacotherapy. 2008 Jul;28(7):863-74. [3]. Falcoz C, Jenkins JM, Bye C, Pharmacokinetics of GW433908, a prodrug of amprenavir, in healthy male volunteers. J Clin Pharmacol. 2002 Aug;42(8):887-98.

Fosamprenavir Calcium Salt Dilution Calculator

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Fosamprenavir Calcium Salt Molarity Calculator

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Preparing Stock Solutions of Fosamprenavir Calcium Salt

1 mg 5 mg 10 mg 20 mg 25 mg
1 mM 1.6034 mL 8.0171 mL 16.0341 mL 32.0682 mL 40.0853 mL
5 mM 0.3207 mL 1.6034 mL 3.2068 mL 6.4136 mL 8.0171 mL
10 mM 0.1603 mL 0.8017 mL 1.6034 mL 3.2068 mL 4.0085 mL
50 mM 0.0321 mL 0.1603 mL 0.3207 mL 0.6414 mL 0.8017 mL
100 mM 0.016 mL 0.0802 mL 0.1603 mL 0.3207 mL 0.4009 mL
* Note: If you are in the process of experiment, it's necessary to make the dilution ratios of the samples. The dilution data above is only for reference. Normally, it's can get a better solubility within lower of Concentrations.

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Background on Fosamprenavir Calcium Salt

GW433908G is a selective inhibitor of antiretroviral protease with the concentration of 1395 mg nM once daily in clinical trial [1].

Antiretroviral protease is a subfamily of protease inhibitors and plays a pivotal role in treating HIV/AIDS and HCV infection. It has been reported that drugs designed as protease inhibitors can prevent viral replication by selectively binding to viral proteases (e.g. HIV-1 protease) and blocking proteolytic cleavage of protein precursors that are necessary for the production of infectious viral particles [2] [3].

GW433908 is a potent antiretroviral protease inhibitor and has improved solubility than amprenavir capsules. Many clinical studies have been done to examine GE433908 safety and pharmacokinetic profiles. In healthy male volunteers, administered GW433908 as tablets or suspension, food had slight effect on its pharmacokinetics and with fewer tablets GW433908 were well tolerated and delivered plasma amprenavir concentrations equivalent to the recommended therapeutic amprenavir dose which may be of clinical benefit in the treatment of HIV infection [4]. As a phosphate ester prodrug of the antiretroviral protease inhibitor amprenavir, GW433908 (1395 mg, QD) combined with efavirenz (200 mg, QD) decreased plasma APV exposure when tested with healthy volunteers [1].

References:
[1].  Wire, M.B., et al., Pharmacokinetics and safety of GW433908 and ritonavir, with and without efavirenz, in healthy volunteers. Aids, 2004. 18(6): p. 897-907.
[2].  Hamada, Y., et al., High incidence of renal stones among HIV-infected patients on ritonavir-boosted atazanavir than in those receiving other protease inhibitor-containing antiretroviral therapy. Clin Infect Dis, 2012. 55(9): p. 1262-9.
[3].  Zheng, Y., et al., Antiretroviral therapy and efficacy after virologic failure on first-line boosted protease inhibitor regimens. Clin Infect Dis, 2014. 59(6): p. 888-96.
[4].  Falcoz, C., et al., Pharmacokinetics of GW433908, a prodrug of amprenavir, in healthy male volunteers. J Clin Pharmacol, 2002. 42(8): p. 887-98.

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References on Fosamprenavir Calcium Salt

Gateways to clinical trials.[Pubmed:19536362]

Methods Find Exp Clin Pharmacol. 2009 Apr;31(3):183-226.

(+)-Dapoxetine hydrochloride, [(123)I]-BZA, 9-Aminocamptothecin; Abacavir sulfate/lamivudine, Adalimumab, Adefovir dipivoxil, Alemtuzumab, Alvocidib hydrochloride, Ambrisentan, Amsilarotene, Anacetrapib, Anakinra, Apricitabine, Aripiprazole, Arsenic trioxide, Atazanavir sulfate, Atazanavir/ritonavir, Atrasentan, Azacitidine; Banoxantrone, Bazedoxifene acetate, Bevacizumab, Bexarotene, Biphasic insulin aspart, Bortezomib, Bosentan, Bromfenac; Cachectin, Calcipotriol/betamethasone dipropionate, Canakinumab, Carfilzomib, CAT-354, CCX-282, Certolizumab pegol, Cetuximab, Choline fenofibrate, Clevudine, Clofarabine, CNTO-328, Corifollitropin alfa, Crofelemer; Daptomycin, Darbepoetin alfa, Darunavir, Dasatinib, Decitabine, Deferasirox, Denosumab, Duloxetine hydrochloride, Dutasteride; Emtricitabine, Enfuvirtide, Entecavir, Epoetin zeta, Erlotinib hydrochloride, Escitalopram oxalate, Eslicarbazepine acetate, Eszopiclone, Etravirine, Everolimus, Exenatide, Ezetimibe, Ezetimibe/simvastatin; Farglitazar, Febuxostat, Fosamprenavir calcium, FX-06; Gabapentin enacarbil, Gefitinib; HIVIS DNA; Imatinib mesylate, INCB- 18424, Indacaterol, Inotuzumab ozogamicin, Insulin detemir; JNJ-26854165; Lacosamide, Landiolol, Laromustine, Lenalidomide, Liposomal doxorubicin, L-NAME, Lopinavir, Lopinavir/ritonavir, Lumiracoxib; Maraviroc, Mepolizumab, Methoxy polyethylene glycol- epoetin-beta, Miglustat, MK-0493, MVA-CMDR, Mycophenolic acid sodium salt; Natalizumab, Nepafenac, Neratinib, Neridronic acid, Nesiritide, Nilotinib hydrochloride monohydrate; Olmesartan medoxomil, Omacetaxine mepesuccinate, Omalizumab; Paclitaxel poliglumex, Palifermin, Patupilone, Pegfilgrastim, Peginterferon alfa-2a, Peginterferon alfa-2b, Peginterferon alfa-2b/ ribavirin, Pemetrexed disodium, PHA-848125, Pitavastatin calcium, Posaconazole, Povidone-iodine liposome complex, Prasugrel, Pregabalin, Prucalopride; Raltegravir potassium, Retigabine, Revaprazan hydrochloride, rhFSH, Rilpivirine, Rivaroxaban, Romidepsin, Rosuvastatin calcium, RWJ-676070; SAR-109659, Sitagliptin phosphate monohydrate, Sorafenib, Stavudine/Lamivudine/Nevirapine, Sunitinib malate; Tadalafil, Telaprevir, Telbivudine, Tenofovir disoproxil fumarate, Tenofovir disoproxil fumarate/emtricitabine, Tenofovir disoproxil fumarate/emtricitabine/efavirenz, Teriparatide, Tigecycline, Tiotropium bromide, Tipifarnib, Tipranavir, Tocilizumab, Trifluridine/TPI; UP-780; Vandetanib, Vardenafil hydrochloride hydrate, Vatalanib succinate, Vitespen, Vorinostat; Yttrium 90 (90Y) ibritumomab tiuxetan; Zoledronic acid monohydrate.

Gateways to clinical trials.[Pubmed:19557204]

Methods Find Exp Clin Pharmacol. 2009 May;31(4):263-98.

(-)-Gossypol; Abacavir sulfate/lamivudine, ACAM-1000, ACE-011, Agomelatine, AGS-004, Alemtuzumab, Alvocidib hydrochloride, AMG-317, Amlodipine, Aripiprazole, Atazanavir sulfate, Azacitidine; Becatecarin, Belinostat, Bevacizumab, BMS-387032, BMS-690514, Bortezomib; Casopitant mesylate, Cetuximab, Choline fenofibrate, CK-1827452, Clofarabine, Conivaptan hydrochloride; Dabigatran etexilate, DADMe-Immucillin-H, Darbepoetin alfa, Darunavir, Dasatinib, DC-WT1, Decitabine, Deferasirox, Degarelix acetate, Denenicokin, Denosumab, Dienogest, Duloxetine hydrochloride; Ecogramostim, Eculizumab, Edoxaban tosilate, Elacytarabine, Elesclomol, Eltrombopag olamine, Enfuvirtide, Enzastaurin hydrochloride, Eribulin mesilate, Erlotinib hydrochloride, Escitalopram oxalate, Eszopiclone, Etravirine; Flibanserin, Fludarabine, Fondaparinux sodium, Fosamprenavir calcium; Gefitinib, Genistein; I-131-L19-SIP, Idrabiotaparinux sodium, Imatinib mesylate, IMGN-901, Ipilimumab; Laromustine, Lenalidomide, Liposomal cisplatin, Liraglutide, Lisdexamfetamine mesilate, Lopinavir, Lopinavir/ritonavir; Maraviroc, MDV-3100, Mecasermin rinfabate, MP-470, Mycophenolic acid sodium salt; Naproxcinod, NB-002, Nesiritide, Nilotinib hydrochloride monohydrate, NK-012; Palonosetron hydrochloride, Panobinostat, Pegfilgrastim, Peginterferon alfa-2a, Pitavastatin calcium, PL-3994, Plerixafor hydrochloride, Plitidepsin, PM-10450; Raltegravir potassium, Recombinant human soluble thrombomodulin, ReoT3D, RHAMM R3 peptide, Rivaroxaban, Romiplostim, Rosuvastatin calcium, Rozrolimupab; Sabarubicin hydrochloride, Salinosporamide A, Sirolimus-eluting stent, Smallpox (Vaccinia) Vaccine, Live, Sorafenib; Tenofovir disoproxil fumarate, Tenofovir disoproxil fumarate/emtricitabine, Teriparatide, Tipifarnib, Tipranavir, Trabectedin, Trifluridine/TPI; Vardenafil hydrochloride hydrate, Vinflunine, Volociximab, Vorinostat; Ximelagatran; Yttrium 90 (90Y) ibritumomab tiuxetan; Ziprasidone hydrochloride, Zoledronic acid monohydrate.

Gateways to clinical trials.[Pubmed:15148527]

Methods Find Exp Clin Pharmacol. 2004 Apr;26(3):211-44.

Gateways to Clinical Trials is a guide to the most recent clinical trials in current literature and congresses. The data in the following tables has been retrieved from the Clinical Studies Knowledge Area of Prous Science Integrity(R), the drug discovery and development portal, http://integrity.prous.com. This issue focuses on the following selection of drugs: ABI-007, adalimumab, adefovir dipivoxil, alefacept, alemtuzumab, 3-AP, AP-12009, APC-8015, L-Arginine hydrochloride, aripiprazole, arundic acid, avasimibe; Bevacizumab, bivatuzumab, BMS-181176, BMS-184476, BMS-188797, bortezomib, bosentan, botulinum toxin type B, BQ-123, BRL-55730, bryostatin 1; CEP-1347, cetuximab, cinacalcet hydrochloride, CP-461, CpG-7909; D-003, dabuzalgron hydrochloride, darbepoetin alfa, desloratadine, desoxyepothilone B, dexmethylphenidate hydrochloride, DHA-paclitaxel, diflomotecan, DN-101, DP-b99, drotrecogin alfa (activated), duloxetine hydrochloride, duramycin; Eculizumab, Efalizumab, EKB-569, elcometrine, enfuvirtide, eplerenone, erlotinib hydrochloride, ertapenem sodium, eszopiclone, everolimus, exatecan mesilate, ezetimibe; Fenretinide, fosamprenavir calcium, frovatriptan; GD2L-KLH conjugate vaccine, gefitinib, glufosfamide, GTI-2040; Hexyl insulin M2, human insulin, hydroquinone, gamma-Hydroxybutyrate sodium; IL-4(38-37)-PE38KDEL, imatinib mesylate, indisulam, inhaled insulin, ixabepilone; KRN-5500; LY-544344; MDX-210, melatonin, mepolizumab, motexafin gadolinium; Natalizumab, NSC-330507, NSC-683864; 1-Octanol, omalizumab, ortataxel; Pagoclone, peginterferon alfa-2a, peginterferon alfa-2b, pemetrexed disodium, phenoxodiol, pimecrolimus, plevitrexed, polyphenon E, pramlintide acetate, prasterone, pregabalin, PX-12; QS-21; Ragaglitazar, ranelic acid distrontium salt, RDP-58, recombinant glucagon-like peptide-1 (7-36) amide, repinotan hydrochloride, rhEndostatin, rh-Lactoferrin, (R)-roscovitine; S-8184, semaxanib, sitafloxacin hydrate, sitaxsentan sodium, sorafenib, synthadotin; Tadalafil, tesmilifene hydrochloride, theratope, tipifarnib, tirapazamine, topixantrone hydrochloride, trabectedin, traxoprodil, Tri-Luma; Valdecoxib, valganciclovir hydrochloride, vinflunine; Ximelagatran; Ziconotide.

Gateways to clinical trials.[Pubmed:16810345]

Methods Find Exp Clin Pharmacol. 2006 Apr;28(3):185-206.

Gateways to Clinical Trials are a guide to the most recent clinical trials in current literature and congresses. The data in the following tables have been retrieved from the Clinical Trials Knowledge Area of Prous Science Integrity, the drug discovery and development portal, http://integrity.prous.com. This issue focuses on the following selection of drugs: ABT-510, adalimumab, alefacept, alemtuzumab, AMG-531, anakinra, armodafinil, asenapine maleate, atazanavir sulfate, atorvastatin; Bortezomib, bosentan; CEB-1555, cetuximab, ciclesonide, clodronate, CT-011; Darifenacin hydrobromide, desloratadine; E-7010, ecallantide, eculizumab, efalizumab, eltrombopag, erlotinib hydrochloride, eslicarbazepine acetate, eszopiclone, ezetimibe; Febuxostat, fosamprenavir calcium, fulvestrant; Gefitinib, genistein; Haemophilus influenzae B vaccine, human papillomavirus vaccine; Imatinib mesylate, insulin glargine; Lenalidomide, liposomal cisplatin; MAb G250, mapatumumab, midostaurin, MP4, mycophenolic acid sodium salt; Natalizumab, neridronic acid, NSC-330507; Oblimersen sodium, ofatumumab, omalizumab, oral insulin, oregovomab; Paliperidone, parathyroid hormone (human recombinant), peginterferon alfa-2a, peginterferon alfa-2b, peginterferon alfa-2b/ribavirin, pegylated arginine deiminase 20000, pemetrexed disodium, pimecrolimus, pitavastatin, pneumococcal 7-valent conjugate vaccine, prasterone, pregabalin, pumosetrag hydrochloride; Recombinant malaria vaccine, retigabine, rivaroxaban, Ro-26-9228, romidepsin, rosuvastatin calcium, rotavirus vaccine; SGN-30, sitaxsentan sodium, solifenacin succinate, sorafenib, sunitinib malate; Tadalafil, tegaserod maleate, temsirolimus, TER-199, tifacogin, tiludronic acid, tiotropium bromide; Vildagliptin, VNP-40101M, vorinostat; YM-150, yttrium 90 (90Y) ibritumomab tiuxetan; Zanolimumab, zoledronic acid monohydrate.

Gateways to clinical trials.[Pubmed:15538546]

Methods Find Exp Clin Pharmacol. 2004 Sep;26(7):587-612.

Gateways to Clinical Trials is a guide to the most recent clinical trials in current literature and congresses. The data in the following tables has been retrieved from the Clinical Trials Knowledge Area of Prous Science Integrity, the drug discovery and development portal, http://integrity.prous.com. This issue focuses on the following selection of drugs: 101M, 166Ho-DOTMP, 3-AP; Abatacept, abetimus sodium, ACR-16, adefovir dipivoxil, alefacept, AMD-070, aminolevulinic acid hexyl ester, anatumomab mafenatox, anti-CTLA-4 MAb, antigastrin therapeutic vaccine, AP-12009, AP-23573, APC-8024, aripiprazole, ATL-962, atomoxetine hydrochloride; Bevacizumab, bimatoprost, bortezomib, bosentan, BR-1; Calcipotriol/betamethasone dipropionate, cinacalcet hydrochloride, clofazimine, colchicine, cold-adapted influenza vaccine trivalent, CRM197; Desloratadine, desoxyepothilone B, diethylhomospermine; Edodekin alfa, efalizumab, elcometrine, eletriptan, enfuvirtide, entecavir, EP-2101, eplerenone, erlotinib hydrochloride, etoricoxib, everolimus, exherin, ezetimibe; Febuxostat, fluorescein lisicol, fosamprenavir calcium, frovatriptan; Hemoglobin raffimer, HSPPC-96, human insulin; Imatinib mesylate, insulin detemir, insulin glargine, IRX-2, istradefylline, IV gamma-globulin, ixabepilone; Kahalalide F; L-759274, levodopa/carbidopa/entacapone, licofelone, lonafarnib, lopinavir, lurtotecan, LY-156735; MAb G250, mecasermin, melatonin, midostaurin, muraglitazar; Nesiritide, nitronaproxen; O6-Benzylguanine, olmesartan medoxomil, olmesartan medoxomil/hydrochlorothiazide, omapatrilat, oral insulin; Parecoxib sodium, PCK-3145, peginterferon alfa-2a, peginterferon alfa-2b, peginterferon alfa-2b/ ribavirin, pemetrexed disodium, peptide YY3-36, PG-CPT, phenoxodiol, pimecrolimus, posaconazole; Rasagiline mesilate, rDNA insulin, RG228, rimonabant hydrochloride, rosuvastatin calcium, rotigotine hydrochloride; S-3304, safinamide mesilate, salcaprozic acid sodium salt, SDZ-SID-791, SGN-30, soblidotin, squalamine; Telmisartan/hydrochlorothiazide, testosterone gel, TF(c)-KLH conjugate vaccine, TH-9507, theraloc, tipifarnib, tocilizumab, travoprost; ValboroPro, valdecoxib, veglin, voriconazole; Ximelagatran.

Description

Fosamprenavir Calcium Salt (GW433908G) is a phosphate ester prodrug of the antiretroviral protease inhibitor Amprenavir, with improved solubility. Anti-HIV infection.

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