Ledipasvir
(Synonyms: 雷迪帕韦; GS-5885) 目录号 : GC17439
An HCV NS5A inhibitor
Cas No.:1256388-51-8
Sample solution is provided at 25 µL, 10mM.
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Quality Control & SDS
- View current batch:
- Purity: >99.50%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet
Animal experiment: | Rats, Dogs and Monkeys[1]Pharmacokinetic studies are performed in male naı̈ve Sprague-Dawley(SD) rats, non-naive beagle dogs, and cynomolgus monkeys (three animals per dosing route). Intravenous (IV) administration is dosed via infusion over 30 min in a vehicle containing 5% ethanol, 20% PEG400, and 75% water (pH adjusted to 3.0 with HCl). Oral dosing is administered by gavage in a vehicle containing 5% ethanol, 45% PEG 400, and 50% of 50 mM citrate buffer, pH 3. Blood samples are collected over a 24 h period postdose into Vacutainer tubes containing EDTA-K2. Plasma was isolated, and the concentration of the test compound in plasma was determined with LC/MS/MS after protein precipitation with acetonitrile. |
References: [1]. Link JO, et al. Discovery of ledipasvir (GS-5885): a potent, once-daily oral NS5A inhibitor for the treatment of hepatitis C virus infection. J Med Chem. 2014 Mar 13;57(5):2033-46 | |
Ledipasvir is an inhibitor of the hepatitis C virus replication with IC50 value of 141 nM [1].
Hepatitis C virus (HCV) is an enveloped (+)-single stranded RNA virus, which is the cause of hepatitis C and some cancer lymphomas. The viral RNA is replicated in host cell via RNA-dependent RNA polymerase of HIV and then assembled into virions. The zinc-binding phosphoprotein NS5A protein is translated from HCV genome, which plays important role in the virus replication process. It may act as an transcriptional activator for NS5A RNA replication system and also the mediator of virion assembly.
Ledipasvir is a specific inhibitor of HCV NS5A protein to inhibit HCV replication in the HCV subgenomic replicon system. NS5A replication complex inhibitors are novel antiviral factors for HCV treatment. Typically, these inhibitors have high efficiency and low viral resistance when compared to traditional HCV replication inhibitor targeted on NS3 helicase and NS5B RNA polymerasae. NS5A inhibitors are supposed to bind across the NS5A dimer interface, proximal to N-terminal domain 1. The binding is thought to distort dimer association directly or allosterically, which may disrupt NS5A function in HCV RNA replication [2]. When a JFH1/3a-NS5A hybrid replicon was used to assess susceptibility to NS5A, another inhibitor DCV was shown to be more potent than ledipasvir. Additionally, NS5A-A30K and -Y93H variants exhibited reduced sensitivity to ledpasvir (EC50 value of 1770 nM and 4300 nM respectively) [1].
In clinical trials, it was observed ledpasvir was well tolerated and exhibited median maximal reduction of HCV RNA ranging from 2.3 log10 IU/ml to 3.3 log10 IU/ml. Emax modeling also showed administration of 30 mg ledpasvir after 3 days resulted in >95% maximal response of HCV RNA reduction to genotype 1a.Finally, it was also observed that HCV RNA was more sustained in genotype 1b compared to 1a [3].
References:
[1] Hernandez D et al. , Natural prevalence of NS5A polymorphisms in subjects infected with hepatitis C virus genotype 3 and their effects on the antiviral activity of NS5A inhibitors. J Clin Virol. 2013, 57(1): 13-8.
[2] Gao M et al. , Chemical genetics strategy identifies an HCV NS5A inhibitor with a potent clinical effect. Nature. 2010, 465: 96-100.
[3] Lawitz E J et al. , A phase 1, randomized, placebo-controlled, 3-day, dose-ranging study of GS-5885, an NS5A inhibitor, in patients with genotype 1 hepatitis C. J Hepatol. 2012, 57(1): 24-31.
| Cas No. | 1256388-51-8 | SDF | |
| 别名 | 雷迪帕韦; GS-5885 | ||
| 化学名 | GS-5885;GS 5885;GS5885 | ||
| Canonical SMILES | CC([C@@](/N=C(OC)\O)([H])C(N1CC2(C[C@@]1([H])C3=NC=C(N3)C4=CC5=C(C6=C(C5(F)F)C=C(C7=CC(N8)=C(N=C8[C@]9([H])[C@@]%10([H])CC[C@](N9C([C@](/N=C(OC)\O)([H])C(C)C)=O)([H])C%10)C=C7)C=C6)C=C4)CC2)=O)C | ||
| 分子式 | C49H54F2N8O6 | 分子量 | 889 |
| 溶解度 | ≥ 44.45 mg/mL in DMSO, ≥ 46.9 mg/mL in EtOH with gentle warming | 储存条件 | Store at -20°C |
| 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 | |||
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1 mg | 5 mg | 10 mg |
| 1 mM | 1.1249 mL | 5.6243 mL | 11.2486 mL |
| 5 mM | 0.225 mL | 1.1249 mL | 2.2497 mL |
| 10 mM | 0.1125 mL | 0.5624 mL | 1.1249 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。
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