9-iodoellipticine | 179184-41-9

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吲哚及其衍生物
• 英文名称: 9-iodoellipticine
• 英文别名: 9-iodo-5,11-dimethyl-6H-pyrido[4,3-b]carbazole
• CAS: 179184-41-9
• 化学式: C₁₇H₁₃IN₂
• 分子量: 372.208
• InChiKey: QGKQZWDKYKAUQD-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.5
• 重原子数：
  20
• 可旋转键数：
  0
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.12
• 拓扑面积：
  28.7
• 氢给体数：
  1
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  9-iodoellipticine 在 lithium hydroxide 、 四(三苯基膦)钯 、 三正丁胺 作用下， 以 四氢呋喃 、 乙醇 、 N,N-二甲基甲酰胺 为溶剂， 60.0 ℃ 、101.33 kPa 条件下， 反应 14.0h， 生成 5,11-dimethyl-6H-pyrido[4,3-b]carbazole-9-carboxylic acid
  参考文献：
  名称：

  Design, Synthesis, and Biological Evaluation of Ellipticine−Estradiol Conjugates

  摘要：

  Three ellipticine-estradiol conjugates were synthesized in an effort to target the cytotoxicity of ellipticine to estrogen-receptor positive cells. The three conjugates were prepared with linker chains extending from the 17 alpha position of the estradiol to N-2 (compound 3), N-6 (compound 4), and C-9 (compound 5) positions of ellipticine. The ellipticine-estradiol conjugates were evaluated for their abilities to bind to estrogen receptors, to inhibit topoisomerase II, and for their cytotoxicities in human cancer cell lines. Conjugates 3 and 5 displayed weak binding affinities of 0.132 and 0.303 for the estrogen receptor (relative to estradiol = 100), while conjugate 4 did not show any detectable binding to the estrogen receptor. Compound 3 was a moderate inhibitor of topoisomerase II (IC50 24.1 mu M), while 4 and 5 were inactive. Conjugate 3 was consistently more cytotoxic (GI(50) values 1-10 mu M) than compounds 4 and 5 (GI(50) values 10-100 mu M) in a variety of human cancer cell lines, None of the compounds displayed any selectivity for estrogen-receptor positive cell lines, which probably reflects their weak affinities for estrogen receptors.

  DOI：

  10.1021/jm9602930
• 作为产物：
  描述：

  椭圆玫瑰树碱 在 mercury(II) diacetate 、 溶剂黄146 、 碘 作用下， 生成 9-iodoellipticine
  参考文献：
  名称：

  Ellipticine-Aimed Polymer-Conjugated Auger Electron Emitter: Multistage Organelle Targeting Approach

  摘要：

  Radioactive decay of some radionuclides produces a shower of Auger electrons, potent ionizing radiation within a very short range in living tissue (typically ca. 100 nm). Therefore, they must be brought to DNA-containing cell compartments and preferentially directly to DNA to be fully biologically effective. They may be used for a triple-targeting approach (first targeting, polymer-based system targeting into tumor tissue due to EPR effect; second targeting, pH-controlled release of intercalator-bound Auger electron emitter in slightly acidic tumor tissue or endosome; third targeting, into DNA in cell nucleus by the intercalator) minimizing radiation burden of healthy tissues. We describe a first system of this type, an ellipticine derivative-bound iodine-125 attached to hydrazide moieties containing poly[N-(2-hydroxypropyl)methacrylamide]. The system is stable at pH 7.4 (0% intercalator released after 24 h incubation), while iodine-containing biologically active intercalator is released upon decrease of pH (25% intercalator released after 24 h incubation at pH 5.0-model of late endosomes). Both 2-N-(2-oxobutyl)-9-iodoellipticinium bromide and the noniodinated 2-N-(2-oxobutyl)ellipticinium bromide are potent intercalators, as proven by direct titration with DNA and ethidium displacement assay, and readily penetrate into cell nuclei, as proven by confocal microscopy. They retain chemotherapeutical antiproliferative properties of ellipticine against Raji, EL-4, and 4T1cells with IC50 in the range 0.27-8.8 mu mol/L. Polymer conjugate of 2-N-(2-oxobutyl)-9-iodoellipticinium bromide is internalized into endosomes, releases active drug, possesses cytotoxic activity, and the drug accumulates in cell nuclei.

  DOI：

  10.1021/bc200064v