2,4-二甲氧基-5-甲基苯甲酸 | 50625-55-3

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 中文名称: 2,4-二甲氧基-5-甲基苯甲酸
• 英文名称: 5-methyl-2,4-dimethoxy-benzoic acid
• 英文别名: 2,4-Dimethoxy-5-methyl-benzoesaeure；2,4-dimethoxy-5-methyl-benzoic acid；2,4-Dimethoxy-5-methylbenzoic acid
• CAS: 50625-55-3
• 化学式: C₁₀H₁₂O₄
• mdl: MFCD04038816
• 分子量: 196.203
• InChiKey: WQBKBHAIWAXLPZ-UHFFFAOYSA-N

物化性质

• 熔点：
  166 °C
• 沸点：
  321.4±37.0 °C(Predicted)
• 密度：
  1.180±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.8
• 重原子数：
  14
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.3
• 拓扑面积：
  55.8
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  2,4-二甲氧基-5-甲基苯甲酸 在 氯化亚砜 作用下， 以 苯 为溶剂， 反应 2.0h， 生成 N,N-Diethyl-2,4-dimethoxy-5-methylbenzamide
  参考文献：
  名称：

  Psymberin/Irciniastatin A 的合成和完整立体化学分配

  摘要：

  我们描述了一种简洁灵活的合成途径，用于制备结构与新型海洋衍生差异细胞毒素 psymberin 和 irciniastatin A 相关的化合物。我们的努力导致了它们的完整立体化学分配以及 psymberin 和 irciniastatin A 相同的概念化合物。我们的全合成具有从 C2 对称双烯烃前体获得的二醛的有趣的末端差异化乳醇化、差向异构腈的温和铂催化水解、制备灵敏的亚胺酸甲酯的新方案和一锅法转化这些亚胺酯转化为 N-酰基胺。从片段 5-7 开始（每个片段准备 7-8 个步骤，

  DOI：

  10.1021/ja0537068
• 作为产物：
  描述：

  2,4-二甲氧基甲苯 反应 6.0h， 生成 2,4-二甲氧基-5-甲基苯甲酸
  参考文献：
  名称：

  Studies toward the Unique Pederin Family Member Psymberin: Full Structure Elucidation, Two Alternative Total Syntheses, and Analogs

  摘要：

  Two synthetic approaches to psymberin have been accomplished. A highly convergent first generation synthesis led to the complete stereochemical assignment and demonstrated that psymberin and irciniastatin A are identical compounds. This synthesis featured a diastereoselective aldol coupling between the aryl fragment and a central tetrahydropyran core and a novel one-pot procedure to convert an amide, via intermediacy of a sensitive methyl imidate, to the N-acyl aminal reminiscent of psymberin. The highlights of the second generation synthesis include an efficient iridium-catalyzed enantioselective bisallylation of neopentyl glycol and a stepwise Sonogashira coupling/cycloisomerization/reduction sequence to construct the dihydroisocoumarin unit. The two synthetic avenues were achieved in 17-18 steps (longest linear sequence, similar to 14-15 isolations) from 3 fragments prepared in 7-8 (first generation) and 3-8 (second generation) steps each. This convergent approach allowed for the preparation of sufficient amounts of psymberin (similar to 0.5 g) for follow-up biological studies. Meanwhile, our highly flexible strategy enabled the design and synthesis of multiple analogs, including a psymberin pederin hybrid, termed psympederin, that proved crucial to a comprehensive understanding of the chemical biology of psymberin and related compounds that will be described in a subsequent manuscript.

  DOI：

  10.1021/ja3057612

文献信息

• PROCESS FOR PRODUCTION OF 4-OXOQUINOLINE COMPOUND
  申请人：Matsuda Koji

  公开号：US20090318702A1

  公开（公告）日：2009-12-24

  The present invention provides a compound useful as a synthetic intermediate for an anti-HIV agent having an integrase inhibitory activity, a production method thereof, and a production method of an anti-HIV agent using the synthetic intermediate. Specifically, the present invention provides, for example, compounds represented by the formulas (6), (7-1), (7-2) and (8): wherein R is a fluorine atom or a methoxy group, R 1 is a C 1 -C 4 alkyl group, R 2 is a hydroxyl-protecting group, and X 2 is a halogen atom, a production method thereof, and a production method of an anti-HIV agent using the synthetic intermediate.

  本发明提供了一种化合物，可用作具有整合酶抑制活性的抗HIV药物的合成中间体，其生产方法，以及使用该合成中间体制备抗HIV药物的生产方法。具体来说，本发明提供了例如由以下公式表示的化合物（6），（7-1），（7-2）和（8）： 其中R为氟原子或甲氧基，R1为C1-C4烷基，R2为羟基保护基，X2为卤原子，其生产方法，以及使用该合成中间体制备抗HIV药物的生产方法。
• Synthesis of Psoralidin derivatives and their anticancer activity: first synthesis of Lespeflorin I1
  作者：Pallab Pahari、Ujwal Pratim Saikia、Trinath Prasad Das、Chendil Damodaran、Jürgen Rohr

  DOI：10.1016/j.tet.2016.04.066

  日期：2016.6

  Synthetic scheme for the preparation of a number of different derivatives of anticancer natural product Psoralidin is described. A convergent synthetic approach is followed using simple starting materials like substituted phenyl acetic esters and benzoic acids. The developed synthetic route leads us to complete the first synthesis of an analogous natural product Lespeflorin I1, a mild melanin synthesis

  描述了用于制备许多不同的抗癌天然产物补骨脂素衍生物的合成方案。使用简单的起始原料，例如取代的苯基乙酸酯和苯甲酸，采用收敛的合成方法。发达的合成路线使我们完成了类似的天然产物莱斯佩弗洛林I 1（一种温和的黑色素合成抑制剂）的首次合成。针对两种常用的前列腺癌细胞系进行了合成化合物的初步生物活性研究。结果表明，可以通过对官能团的简单修饰来控制化合物的生物活性。
• Synthesis and Complete Stereochemical Assignment of Psymberin/Irciniastatin A
  作者：Xin Jiang、Jorge García-Fortanet、Jef K. De Brabander

  DOI：10.1021/ja0537068

  日期：2005.8.1

  We describe a concise and flexible synthetic avenue for the preparation of compounds with structures relevant to those proposed for the novel marine-derived differential cytotoxins psymberin and irciniastatin A. Our efforts led to their complete stereochemical assignment and the notion that psymberin and irciniastatin A are identical compounds. Our total synthesis features an interesting termini-differentiating

  我们描述了一种简洁灵活的合成途径，用于制备结构与新型海洋衍生差异细胞毒素 psymberin 和 irciniastatin A 相关的化合物。我们的努力导致了它们的完整立体化学分配以及 psymberin 和 irciniastatin A 相同的概念化合物。我们的全合成具有从 C2 对称双烯烃前体获得的二醛的有趣的末端差异化乳醇化、差向异构腈的温和铂催化水解、制备灵敏的亚胺酸甲酯的新方案和一锅法转化这些亚胺酯转化为 N-酰基胺。从片段 5-7 开始（每个片段准备 7-8 个步骤，
• Synthesis and complete stereochemical assignment of psymberin/irciniastatin for use as antitumor compounds
  申请人：Brabander De Jef

  公开号：US20070015821A1

  公开（公告）日：2007-01-18

  The invention relates to the synthesis and complete stereochemical assignments of cytotoxic compounds such as compound 28-a and its stereoisomers: The invention further provides processes for making the compounds, their synthetic intermediates, and for methods of using the compounds and their pharmaceutical compositions for the treatment of neoplastic diseases.

  该发明涉及合成和对细胞毒性化合物的完全立体化学赋值，如化合物28-a及其立体异构体。该发明还提供了制备这些化合物、它们的合成中间体的方法，以及使用这些化合物及其药物组合物治疗肿瘤性疾病的方法。
• METHOD FOR PRODUCING 4-OXOQUINOLINE COMPOUND
  申请人：Matsuda Koji

  公开号：US20090036684A1

  公开（公告）日：2009-02-05

  The present invention provides a compound useful as a synthetic intermediate for an anti-HIV agent having an integrase inhibitory activity, and a production method thereof, and a production method of an anti-HIV agent using the synthetic intermediate. Specifically, for example, a compound represented by the formula (2′): wherein R is a fluorine atom or a methoxy group, and R 400 is a hydrogen atom or a C 1 -C 4 alkyl group, or a salt thereof, and a production method thereof, and a production method of an anti-HIV agent using the synthetic intermediate.

  本发明提供了一种化合物，可用作抗HIV剂的合成中间体，具有整合酶抑制活性，以及其生产方法和使用该合成中间体生产抗HIV剂的方法。具体而言，例如，化合物由式（2'）表示：其中R为氟原子或甲氧基，R400为氢原子或C1-C4烷基，或其盐，以及其生产方法和使用该合成中间体生产抗HIV剂的方法。