Cephalotaxlen (ZINC19795976)   中文名称: 三尖杉碱

ZIKV

Cephalotaxine 通过阻碍病毒复制和稳定性来抑制寨卡病毒感染。

Hepatotoxicity
In controlled trials, serum aminotransferase elevations occurred in 2% to 6% patients treated with omacetaxine, but most elevations were mild and transient with only rare patients requiring dose modification or discontinuation for liver test abnormalities. Clinically apparent liver injury with jaundice was not reported in the preregistration trials of omacetaxine and is not mentioned in the product label. Since the approval and more wide scale use of omacetaxine, there have been no publications or descriptions of the hepatotoxicity with jaundice associated with its use. Thus, clinically apparent liver injury due to omacetaxine must be rare, if it occurs at all.
Likelihood score: E (unlikely cause of clinically apparent liver injury).

[1]. Studies on the alkaloids of Cephalotaxus. IX. Semi-synthesis of cephalotaxine esters and their anti-leukemic activity Yao Xue Xue Bao. 1992;27(3):178-84.

[2]. Molecular modes of action of cephalotaxine and homoharringtonine from the coniferous tree Cephalotaxus hainanensis in human tumor cell lines. Naunyn Schmiedebergs Arch Pharmacol. 2003 Jan;367(1):56-67.

[3]. Cephalotaxine inhibits Zika infection by impeding viral replication and stability. Biochem Biophys Res Commun. 2020 Feb 19; 522(4): 1052–1058.

Cephalotaxine is a benzazepine alkaloid isolated from Cephalotaxus harringtonia. It is a benzazepine alkaloid, a benzazepine alkaloid fundamental parent, an organic heteropentacyclic compound, an enol ether, a cyclic acetal, a secondary alcohol and a tertiary amino compound.
Omacetaxine is a semisynthetic cephataxine that acts as a protein translation inhibitor and is used to treated chronic myeloid leukemia that is resistant to tyrosine kinase receptor antagonists. Omacetaxine is associated with a low rate of serum enzyme elevation during therapy, but has not been linked to cases of clinically apparent liver injury with jaundice.
Cephalotaxine has been reported in Cephalotaxus fortunei, Cephalotaxus hainanensis, and other organisms with data available.
Omacetaxine is a protein translation inhibitor and cytotoxic plant alkaloid homoharringtonine isolated from the evergreen tree Cephalotaxus, with potential antineoplastic activity. Although the exact mechanism of action has not been fully elucidated, upon administration, omacetaxine targets and binds to the 80S ribosome in eukaryotic cells and inhibits protein synthesis by interfering with chain elongation. This reduces levels of certain oncoproteins and anti-apoptotic proteins.
Semisynthetic derivative of harringtonine that acts as a protein synthesis inhibitor and induces APOPTOSIS in tumor cells. It is used in the treatment of MYELOID LEUKEMIA, CHRONIC.
See also: Omacetaxine Mepesuccinate (active moiety of).

C18H21NO4

315.370

315.147

C, 68.55; H, 6.71; N, 4.44; O, 20.29

24316-19-6

65305

White to light yellow solid powder

1.4±0.1 g/cm3

495.2±45.0 °C at 760 mmHg

253.3±28.7 °C

0.0±1.3 mmHg at 25°C

1.665

2.13

51.16

1

5

1

23

523

3

O([H])[C@]1([H])C(=C([H])[C@]23C([H])([H])C([H])([H])C([H])([H])N2C([H])([H])C([H])([H])C2=C([H])C4=C(C([H])=C2[C@@]31[H])OC([H])([H])O4)OC([H])([H])[H]

YMNCVRSYJBNGLD-KURKYZTESA-N

1S/C18H21NO4/c1-21-15-9-18-4-2-5-19(18)6-3-11-7-13-14(23-10-22-13)8-12(11)16(18)17(15)20/h7-9,16-17,20H,2-6,10H2,1H3/t16-,17-,18+/m1/s1

(11bS,12S,14aR)-13-methoxy-2,3,5,6,11b,12-hexahydro-1H-[1,3]dioxolo[4',5'

(-)-Cephalotaxine; Alkaloid A from Cephalotaxus; Cephalotaxine

2934.99.9001

Powder      -20°C    3 years

                     4°C     2 years

In solvent   -80°C    6 months

                  -20°C    1 month

Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)

DMSO : ~25 mg/mL (~79.27 mM)

配方 1 中的溶解度: ≥ 2.5 mg/mL (7.93 mM) (饱和度未知) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (这些助溶剂从左到右依次添加，逐一添加), 澄清溶液。
例如，若需制备1 mL的工作液，可将100 μL 25.0 mg/mL澄清DMSO储备液加入到400 μL PEG300中，混匀；然后向上述溶液中加入50 μL Tween-80，混匀；加入450 μL生理盐水定容至1 mL。
*生理盐水的制备：将 0.9 g 氯化钠溶解在 100 mL ddH₂O中，得到澄清溶液。

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配方 2 中的溶解度: ≥ 2.5 mg/mL (7.93 mM) (饱和度未知) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (这些助溶剂从左到右依次添加，逐一添加), 澄清溶液。
例如，若需制备1 mL的工作液，可将 100 μL 25.0 mg/mL澄清DMSO储备液加入900 μL 20% SBE-β-CD生理盐水溶液中，混匀。
*20% SBE-β-CD 生理盐水溶液的制备（4°C，1 周）：将 2 g SBE-β-CD 溶解于 10 mL 生理盐水中，得到澄清溶液。

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配方 3 中的溶解度: ≥ 2.5 mg/mL (7.93 mM) (饱和度未知) in 10% DMSO + 90% Corn Oil (这些助溶剂从左到右依次添加，逐一添加), 澄清溶液。
例如，若需制备1 mL的工作液，可将 100 μL 25.0 mg/mL 澄清 DMSO 储备液加入到 900 μL 玉米油中并混合均匀。

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请根据您的实验动物和给药方式选择适当的溶解配方/方案：
1、请先配制澄清的储备液(如：用DMSO配置50 或 100 mg/mL母液(储备液));
2、取适量母液，按从左到右的顺序依次添加助溶剂，澄清后再加入下一助溶剂。以 下列配方为例说明 (注意此配方只用于说明，并不一定代表此产品 的实际溶解配方):
10% DMSO → 40% PEG300 → 5% Tween-80 → 45% ddH2O (或 saline);
假设最终工作液的体积为 1 mL, 浓度为5 mg/mL: 取 100 μL 50 mg/mL 的澄清 DMSO 储备液加到 400 μL PEG300 中，混合均匀/澄清；向上述体系中加入50 μL Tween-80，混合均匀/澄清；然后继续加入450 μL ddH2O (或 saline)定容至 1 mL；
3、溶剂前显示的百分比是指该溶剂在最终溶液/工作液中的体积所占比例;
4、 如产品在配制过程中出现沉淀/析出，可通过加热(≤50℃)或超声的方式助溶;
5、为保证最佳实验结果，工作液请现配现用！
6、如不确定怎么将母液配置成体内动物实验的工作液，请查看说明书或联系我们;
7、 以上所有助溶剂都可在 Invivochem.cn网站购买。