Valopicitabine
(Synonyms: NM283) 目录号 : GC63248
Valopicitabine (NM283) 是一种核苷类似物，是强效抗 HCV 剂的 2’-C-甲基胞苷 (NM107) 的口服生物利用前药。NM107 竞争性抑制 NS5B 聚合酶，导致链终止。
Cas No.:640281-90-9
Sample solution is provided at 25 µL, 10mM.
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Quality Control & SDS
- View current batch:
- Purity: >98.00%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet
Valopicitabine (NM283) is a nucleoside analog and the orally bioavailable prodrug of the potent anti-HCV agent 2’-C-methylcytidine (NM107). NM107competitively inhibits NS5B polymerase, causing chain termination[1][2].
Valopicitabine (NM283) (100 mg/kg; oral administration; Sprague-Dawley Rats) shows the Cmax, AUC, t1/2, and tmax were 3.624 μg/mL, 8.95 μg h/mL, 0.64 hours and 1 hour, respectively[2].
[1]. Pierra C, et al. Nm 283, an efficient prodrug of the potent anti-HCV agent 2’-C-methylcytidine. Nucleosides Nucleotides Nucleic Acids. 2005;24(5-7):767-70.
[2]. Pierra C, et al. Synthesis and pharmacokinetics of valopicitabine (NM283), an efficient prodrug of the potent anti-HCV agent 2’-C-methylcytidine. J Med Chem. 2006 Nov 2;49(22):6614-20.
| Cas No. | 640281-90-9 | SDF | |
| 别名 | NM283 | ||
| 分子式 | C15H24N4O6 | 分子量 | 356.37 |
| 溶解度 | 储存条件 | ||
| General tips | 请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液；一旦配成溶液，请分装保存，避免反复冻融造成的产品失效。 储备液的保存方式和期限：-80°C 储存时，请在 6 个月内使用，-20°C 储存时，请在 1 个月内使用。 为了提高溶解度，请将管子加热至37℃，然后在超声波浴中震荡一段时间。 |
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| Shipping Condition | 评估样品解决方案：配备蓝冰进行发货。所有其他可用尺寸：配备RT，或根据请求配备蓝冰。 | ||
| 制备储备液 | |||
 |
1 mg | 5 mg | 10 mg |
| 1 mM | 2.8061 mL | 14.0304 mL | 28.0607 mL |
| 5 mM | 0.5612 mL | 2.8061 mL | 5.6121 mL |
| 10 mM | 0.2806 mL | 1.403 mL | 2.8061 mL |
| 第一步：请输入基本实验信息（考虑到实验过程中的损耗，建议多配一只动物的药量） | ||||||||||
| 给药剂量 | mg/kg |  |
动物平均体重 | g | |
每只动物给药体积 | ul | |
动物数量 | 只 |
| 第二步：请输入动物体内配方组成（配方适用于不溶于水的药物；不同批次药物配方比例不同，请联系GLPBIO为您提供正确的澄清溶液配方） | ||||||||||
| % DMSO % % Tween 80 % saline | ||||||||||
| 计算重置 | ||||||||||
计算结果:
工作液浓度： mg/ml；
DMSO母液配制方法： mg 药物溶于 μL DMSO溶液（母液浓度 mg/mL，
体内配方配制方法：取 μL DMSO母液，加入 μL PEG300，混匀澄清后加入μL Tween 80，混匀澄清后加入 μL saline，混匀澄清。
1. 首先保证母液是澄清的；
2.
一定要按照顺序依次将溶剂加入，进行下一步操作之前必须保证上一步操作得到的是澄清的溶液，可采用涡旋、超声或水浴加热等物理方法助溶。
3. 以上所有助溶剂都可在 GlpBio 网站选购。
Valopicitabine dihydrochloride:a specific polymerase inhibitor of hepatitis C virus
Curr Opin Investig Drugs 2007 Feb;8(2):150-8.PMID:17328231doi
Idenix Pharmaceuticals Inc and Novartis AG are codeveloping Valopicitabine dihydrochloride, a once-daily oral nucleoside for the potential treatment of HCV infection. In January 2005, a phase IIa clinical trial comparing Valopicitabine dihydrochloride with pegylated IFN in treatment-naive HCV patients was ongoing, in addition to a phase IIb trial in patients that had previously failed pegylated IFN and ribavirin combination therapy. In January 2006, an international phase III trial in treatment-refractory patients was planned for the first half of the year, with a phase III trial in treatment-naive individuals planned for the second half of the year.
Amino Acid Ester Prodrugs of Nucleoside and Nucleotide Antivirals
Mini Rev Med Chem 2017;17(10):818-833.PMID:28215138DOI:10.2174/1389557517666170216151601.
Objective: The review covers basic principles of the prodrug strategy applied to antiviral nucleoside drugs or drug candidates. Specific role of amino acids as promoieties is explained with respect to transport mechanisms, pharmacokinetics and a low toxicity of compounds. Synthetic approaches to the most important representatives (compounds under clinical investigations or available on the market) are described, including valacyclovir, valganciclovir, valomaciclovir stearate, valcyclopropavir, valtorcitabine, Valopicitabine and several attempts to amino acid modifications of antiretroviral nucleosides. Method: A special attention is paid to acyclic nucleoside phosphonates, where the phosphonic acid residue is esterified with a side-chain hydroxyl group of appropriate amino acid (serine, tyrosine) which can be used as single amino acid or as a part of dipeptides further modified on the terminal carboxyl function. The most advantageous pharmacokinetic profile and the best oral bioavailability were found in tyrosinebased prodrugs. Results & conclusion: Studies were performed successfully on 1-(S)-[3-hydroxy-2-(phosphonomethoxy) propyl]cytosine (cidofovir), 9-(S)-[3-hydroxy-2-(phosphonomethoxy)propyl]adenine and some (R)-2- (phosphonomethoxy)propyl and 2-(phosphonomethoxy)ethyl derivatives including adefovir.
Synthesis and pharmacokinetics of Valopicitabine (NM283), an efficient prodrug of the potent anti-HCV agent 2'-C-methylcytidine
J Med Chem 2006 Nov 2;49(22):6614-20.PMID:17064080DOI:10.1021/jm0603623.
In our search for new therapeutic agents against chronic hepatitis C, a ribonucleoside analogue, 2'-C-methylcytidine, was discovered to be a potent and selective inhibitor in cell culture of a number of RNA viruses, including the pestivirus bovine viral diarrhea virus, a surrogate model for hepatitis C virus (HCV), and three flaviviruses, namely, yellow fever virus, West Nile virus, and dengue-2 virus. However, pharmacokinetic studies revealed that 2'-C-methylcytidine suffers from a low oral bioavailability. To overcome this limitation, we have synthesized the 3'-O-l-valinyl ester derivative (dihydrochloride form, Valopicitabine, NM283) of 2'-C-methylcytidine. We detail herein for the first time the chemical synthesis and physicochemical characteristics of this anti-HCV prodrug candidate, as well as a comparative study of its pharmacokinetic parameters with those of its parent nucleoside analogue, 2'-C-methylcytidine.
Ribavirin antagonizes the in vitro anti-hepatitis C virus activity of 2'-C-methylcytidine, the active component of Valopicitabine
Antimicrob Agents Chemother 2006 Oct;50(10):3444-6.PMID:17005827DOI:10.1128/AAC.00372-06.
Ribavirin antagonizes the in vitro anti-hepatitis C virus (HCV) activity of the pyrimidine nucleoside analogue 2'-C-methylcytidine, the active component of the experimental anti-HCV drug Valopicitabine. In contrast, the combination of ribavirin with either the purine nucleoside analogue 2'-C-methyladenosine or the HCV protease inhibitor VX-950 resulted in an additive antiviral activity. These findings may have implications when planning clinical studies with Valopicitabine.
Hepatitis C protease and polymerase inhibitors in development
AIDS Patient Care STDS 2008 Jun;22(6):449-57.PMID:18479202DOI:10.1089/apc.2007.0199.
Hepatitis C infection (HCV) remains a global problem and the current anti-HCV therapies available in the clinic have sustained virologic response rates (SVR) of only about 50%, especially in HCV genotype 1-infected subjects. The SVR is even lower in HIV-HCV co-infected patients, estimated at only about 30-40%. However, exciting new research is under way to find new anti-HCV therapies. Presently, efforts to develop new anti-HCV agents for HCV-infected persons who fail pegylated interferon and ribavirin-based therapies have focused on inhibitors of key HCV enzymes such as the HCV NS3 protease and the NS5B polymerase. There are two protease inhibitors, telaprevir (VX-950, Vertex) and boceprevir (SCH 503034, Schering-Plough); and three polymerase inhibitors, Valopicitabine (NM283, Idenix), R1626 (Roche), and HCV-796 (Viropharma) that have advanced to late-stage clinical trials. Of these aforementioned agents, telaprevir is the most advanced in clinical development. Early trial results on efficacy, safety, and HCV drug-resistance profiles of these novel agents will be discussed in this review paper.