2,3,6-trimethoxy-5-nitrobenzaldehyde | 326606-12-6

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 2,3,6-trimethoxy-5-nitrobenzaldehyde
• 英文别名: 5-nitro-2,3,6-trimethoxybenzaldehyde；3-nitro-2,5,6-trimethoxy-benzaldehyde
• CAS: 326606-12-6
• 化学式: C₁₀H₁₁NO₆
• 分子量: 241.2
• InChiKey: YGXBLYQNHKOWCM-UHFFFAOYSA-N

物化性质

• 熔点：
  106-108 °C
• 沸点：
  425.1±45.0 °C(Predicted)
• 密度：
  1.304±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.1
• 重原子数：
  17
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.3
• 拓扑面积：
  90.6
• 氢给体数：
  0
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  2,3,6-trimethoxy-5-nitrobenzaldehyde 在 三乙基硅烷 、 Proton Sponge 、 三氟甲磺酸 、 dimethyl sulfide borane 、 4 A molecular sieve 、 scandium tris(trifluoromethanesulfonate) 作用下， 以 四氢呋喃 、 二氯甲烷 为溶剂， 反应 69.5h， 生成 (2R,3S,5R)-2-hydroxy-3-methoxy-5-methyl-6-(5-nitro-2,3,6-trimethoxy-phenyl)-hexanoic acid methyl ester
  参考文献：
  名称：

  Mild Reductive Opening of Aryl Pyranosides Promoted by Scandium(III) Triflate

  摘要：

  DOI：

  10.1021/ja067234o
• 作为产物：
  描述：

  1,2,4-三甲氧基苯 在 正丁基锂 、 硝酸 、 溶剂黄146 作用下， 以 乙醚 、 正己烷 为溶剂， 反应 4.5h， 生成 2,3,6-trimethoxy-5-nitrobenzaldehyde
  参考文献：
  名称：

  使用抗乙醇酸羟醛缩合反应合成格尔德霉素的左侧部分。

  摘要：

  [图：见正文]据报道，安沙霉素抗肿瘤天然产物格尔德霉素的左侧部分已合成。高级中间体将甲氧基醌前体作为具有10个碳链的五取代苯包含6个立体中心中的4个。关键反应是与新型二芳基-4-氧杂蒽酮发生的新型抗羟乙酸羟醛反应，该新二芳基-4-氧杂吡酮用于生成C-11，C-12羟基，甲氧基官能团。

  DOI：

  10.1021/ol0068997

文献信息

• Heat shock protein 90 inhibitors
  申请人：Blagg Brian

  公开号：US20060089495A1

  公开（公告）日：2006-04-27

  Novel compounds useful for inhibiting the 90 kDa heat shock proteins containing a quinone-like moiety and a di-hydroxy phenol like moiety, similar to geldanamycin and radicicol.

  新型化合物对抑制含有类似醌类结构和二羟基酚类结构的90千道尔顿热休克蛋白具有用途，类似于格尔德霉素和拉迪考尔。
• Total Synthesis of (+)-Geldanamycin and (−)-<i>o</i>-Quinogeldanamycin:  Asymmetric Glycolate Aldol Reactions and Biological Evaluation
  作者：Merritt B. Andrus、Erik L. Meredith、Erik J. Hicken、Bryon L. Simmons、Russell R. Glancey、Wei Ma

  DOI：10.1021/jo034870l

  日期：2003.10.1

  The total synthesis of (+)-geldanamycin (GA), following a linear route, has been completed using a demethylative quinone-forming reaction as the last step. Key steps include the use of two new asymmetric boron glycolate aldol reactions. To set the anti-C11,12 hydroxymethoxy functionality, (S,S)-5,6-bis-4-methoxyphenyldioxanone 8 was used. Methylglycolate derived from norephedrine 5 set the C6,7 methoxyurethane

  （+）-格尔德霉素（GA）的总合成遵循线性路线，最后一步是使用脱甲基醌形成反应完成的。关键步骤包括使用两个新的不对称乙醇酸硼酸羟醛缩醛反应。为了设定抗C11，12羟基甲氧基官能度，使用（S，S）-5，6-双-4-甲氧基苯基二恶烷酮8。衍生自去氧麻黄碱5的乙醇酸甲酯设置了C6,7甲氧基氨基甲酸酯的立体化学。与硝酸相比，使用硝酸的醌形成步骤得到的非天然邻-喹啉-GA产物55为10：1。其他已知的氧化剂产生了不寻常的氮杂醌产物49。o-Quino-GA 55以良好的亲和力结合Hsp90，但与GA相比，细胞毒性较小。
• Synthesis of the Left-Hand Portion of Geldanamycin Using an Anti Glycolate Aldol Reaction
  作者：Merritt B. Andrus、Erik L. Meredith、B. B. V. Soma Sekhar

  DOI：10.1021/ol0068997

  日期：2001.1.1

  [figure: see text] A synthesis of the left-hand portion of the ansamycin antitumor natural product geldanamycin is reported. An advanced intermediate incorporates the methoxyquinone precursor as a pentasubstituted benzene with a 10-carbon chain that contains 4 of the 6 stereocenters. The key reaction is a novel anti glycolate aldol reaction with a new diaryl-4-oxapyrone used to generate the C-11, C-12

  [图：见正文]据报道，安沙霉素抗肿瘤天然产物格尔德霉素的左侧部分已合成。高级中间体将甲氧基醌前体作为具有10个碳链的五取代苯包含6个立体中心中的4个。关键反应是与新型二芳基-4-氧杂蒽酮发生的新型抗羟乙酸羟醛反应，该新二芳基-4-氧杂吡酮用于生成C-11，C-12羟基，甲氧基官能团。
• Design, Synthesis, and StructureActivity Relationships for Chimeric Inhibitors of Hsp90
  作者：Gang Shen、Mingwen Wang、Timothy R. Welch、Brian S. J. Blagg

  DOI：10.1021/jo061054f

  日期：2006.9.1

  Inhibition of the 90 kDa heat shock protein (Hsp90) family of molecular chaperones represents a promising new chemotherapeutic approach toward the treatment of several cancers. Previous studies have demonstrated that the natural products, radicicol and geldanamycin, are potent inhibitors of the Hsp90 N-terminal ATP binding site. The cocrystal structures of these molecules bound to Hsp90 have been determined, and through molecular modeling and superimposition of these ligands, hybrids of radicicol and geldanamycin have been designed. A series of macrocylic chimeras of radicicol and geldanamycin and the corresponding seco-agents have been prepared and evaluated for both antiproliferative activity and their ability to induce Hsp90-dependent client protein degradation.
• Total Synthesis of (+)-Geldanamycin and (−)-<i>o</i>-Quinogeldanamycin with Use of Asymmetric <i>Anti- </i>and <i>Syn</i>-Glycolate Aldol Reactions
  作者：Merritt B. Andrus、Erik L. Meredith、Bryon L. Simmons、B. B. V. Soma Sekhar、Erik J. Hicken

  DOI：10.1021/ol0267432

  日期：2002.10.1

  Geldanamycin (GA), an antitumor Hsp90 inhibitor, was made for the first time by using an oxidative demethylation reaction as the final step. A biaryldioxanone auxiliary set the anti C11-12 hydroxy-methoxy functionality and a methylglycolate auxiliary based on norephedrine was used for the syn C6-7 methoxy-urethane. p-Quinone-forming oxidants, CAN and AgO, produced an unusual aza-quinone product. Nitric acid gave GA from a trimethoxy precursor in 55% yield as a 1:10 mixture with nonnatural o-quino-GA.