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- 详细信息
- 文献和实验
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- CAS号:
124832-26-4
- 规格:
25mg/50mg/100mg
| 规格: | 25mg | 产品价格: | ¥8480.0 |
|---|---|---|---|
| 规格: | 50mg | 产品价格: | ¥11040.0 |
| 规格: | 100mg | 产品价格: | ¥14000.0 |
Product Introduction
Bioactivity
| 名称 | Valaciclovir |
| 描述 | Valacyclovir (Valaciclovir) is an orally active antiviral drug for herpes simplex, herpes zoster, and herpes B. Valacyclovir inhibits HSV-1 W with an IC50 of 2.9 μg/ml. Valacyclovir is a prodrug of Aciclovir [1] [2] [3] [4] [5]. |
| 体外活性 | Valacyclovir (Valaciclovir; VACV) uptake was concentration dependent and saturable with a Michaelis-Menten constant and maximum velocity of 1.64 mM and 23.34 nmol/mg protein/5 min, respectively. A very similar Km value was obtained in hPEPT1/CHO cells and in rat and rabbit tissues and Caco-2 cells, which demonstrates that hPEPT1 dominates the intestinal transport properties of VACV in vitro [5]. |
| 体内活性 | A large comparative trial has shown that Valacyclovir (1 g twice a day) is as same effective as acyclovir (200 mg five times a day) when given for 10 days for treatment of the first episode of genital herpes. For treating recurrences, two trials show that valacyclovir is as effective as acyclovir (200 mg five times a day) with a treatment period of 5 days. A daily dose of 1 g of valacyclovir is as effective as 2 g daily. Valacyclovir can be administered once a day [1]. The concentrations of acyclovir in serum and CSF were measured at steady state after 6 days of oral treatment with 1,000 mg of valacyclovir three times a day [2]. EC50 values of PE and AC in 3T3 cells were 0.02 and 0.01 ug/ml, while values in BHK cells were 0.2 and 0.03 ug/ml. Treatment of infected immunosuppressed mice and FA and VA (b.i.d., 5.5 days) reduced the proportion with erythema from 100% to 24% and 38%, and eliminated ear paralysis, ear lesions (vesicles, etc) and death. Virus was absent from ear and brainstem by day 6, but reappeared after discontinuation in mice treated with VA [3]. |
| 存储条件 | Powder: -20°C for 3 years | In solvent: -80°C for 1 year Shipping with blue ice/Shipping at ambient temperature. |
| 关键字 | Valaciclovir |
| 相关产品 | Adipic dihydrazide | Levulinic acid | Doxycycline | Neomycin sulfate | Terbinafine hydrochloride | BES | Dimethyl sulfoxide | Sodium bicarbonate | Hyaluronic acid sodium (MW 20 kDa) | Sodium diacetate | Sulfamethoxazole sodium | D(+)-Raffinose pentahydrate |
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文献和实验网络 第十九章 杂环化合物和生物碱 杂环化合物在自然界分布很广,其数量几乎占已知有机化合物的三分之一,用途也很多。许多重要的物质如叶绿素、血红素、核酸以及临床应用的一些有显著疗效的天然药物和合成药物等,都含有杂环化合物的结构。生物碱多是中草药的有效成分,绝大多数是含氮的杂环化合物。本章内容与医学关系密切,具有重要意义。
分子中具有高能键的化合物。在生物体内主要有上式(Ⅰ)和(Ⅱ)两种结构的高能化合物。其作用为贮藏能量(例如 ATP、肌酸磷酸)和作为产生 ATP源的中间代谢产物(例如磷酸烯醇丙酮酸)以及合成反应的中间物质(例如酰基辅酶 A),在蛋白质的结构( conformation)变化周期的第一阶段上(例如钠钾 ATP酶的羧基磷酸中间体)也具有重要作用。多数高等化合物具有磷酸基,但也有例外。
由不同种元素组成的纯净物叫做化合物。化合物一般有固定的组成。化合物的组成一般可用化学式表示。化合物具有确定的物理性质和化学性质,不同于其组成元素的性质。化合物中的元素不能用简单的机械方法或物理方法分开,而必须用化学方法才能分离。
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