4-氯苯丁酸甲酯 | 20637-04-1

• 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: 4-氯苯丁酸甲酯
• 英文名称: methyl 4-(4-chlorophenyl)butanoate
• 英文别名: 4-Chlorobenzenebutanoic acid methyl ester
• CAS: 20637-04-1
• 化学式: C₁₁H₁₃ClO₂
• mdl: MFCD09835995
• 分子量: 212.676
• InChiKey: PKDYQQMLWWXCHT-UHFFFAOYSA-N

物化性质

• 沸点：
  115-117 °C(Press: 1.5 Torr)
• 密度：
  1.136

计算性质

• 辛醇/水分配系数(LogP)：
  3.4
• 重原子数：
  14
• 可旋转键数：
  5
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.363
• 拓扑面积：
  26.3
• 氢给体数：
  0
• 氢受体数：
  2

安全信息

• 海关编码：
  2916399090

反应信息

• 作为反应物：
  描述：

  4-氯苯丁酸甲酯 在 二异丁基氢化铝 作用下， 以 二氯甲烷 、 水 、 甲苯 为溶剂， 反应 1.0h， 生成 4-(4-chlorophenyl)butanal
  参考文献：
  名称：

  Removal of Human Ether-à-go-go Related Gene (hERG) K⁺ Channel Affinity through Rigidity: A Case of Clofilium Analogues

  摘要：

  Cardiotoxicity is a side effect that plagues modern drug design and is very often due to the off-target blockade of the human ether-a-go-go related gene (hERG) potassium channel. To better understand the structural determinants of this blockade, we designed and synthesized a series of 40 derivatives of clofilium, a class III antiarrhythrnic agent. These were evaluated in radioligand binding and patch-damp assays to establish structure affinity relationships (SAR) for this potassium channel. Efforts were especially focused on studying the influence of the structural rigidity and the nature of the linkers composing the clofilium scaffold. It was shown that introducing triple bonds and oxygen atoms in the n-butyl linker of the molecule greatly reduced affinity without significantly modifying the pK(a) of the essential basic nitrogen. These findings could prove useful in the first stages of drug discovery as a systematic way of reducing the risk of hERG K+ channel blockade-induced cardiotoxicity.

  DOI：

  10.1021/jm4010434
• 作为产物：
  描述：

  3-(4-氯苯甲酰)丙酸 在 硫酸 、 potassium hydroxide 、 肼 作用下， 以 二乙二醇 为溶剂， 反应 21.0h， 生成 4-氯苯丁酸甲酯
  参考文献：
  名称：

  [EN] BEXAROTENE DERIVATIVES AND THEIR USE IN TREATING CANCER
  [FR] DÉRIVÉS DU BEXAROTÈNE ET LEUR UTILISATION DANS LE TRAITEMENT DU CANCER

  摘要：

  这份披露涉及治疗癌症的组合物和方法。具体而言，这份披露涉及贝沙罗汀衍生物，治疗癌症、自身免疫性疾病和/或皮肤皮炎的方法，以及增加外周血细胞计数和/或改善免疫系统功能的方法。

  公开号：

  WO2019169270A1

文献信息

• Reductive C–C Coupling by Desulfurizing Gold-Catalyzed Photoreactions
  作者：Lumin Zhang、Xiaojia Si、Yangyang Yang、Sina Witzel、Kohei Sekine、Matthias Rudolph、Frank Rominger、A. Stephen K. Hashmi

  DOI：10.1021/acscatal.9b01368

  日期：2019.7.5

  which cannot be efficiently accessed by previously reported methods. This mild and highly efficient C–C bond formation strategy uses mercaptans both as electron-deficient alkyl radical precursor as well as the hydrogen source. Two examples of amino acids have also been modified by using this strategy. Moreover, this methodology could be applied in polymer synthesis. Gram-scale synthesis and mechanistic

  [Au 2（μ-dppm）2 ] Cl 2介导的光催化反应通常是由紫外线A（UVA）引发的。在本文中，发现了一种未报告的系统，该系统使用蓝色发光二极管（LED）作为激发光源。吸收波长的红移源自[Au 2（μ-dppm）2 ] Cl 2和配体（Ph 3P或硫醇）。根据这一发现，提出了由蓝色LED介导的亲电子自由基和苯乙烯的金催化还原性脱硫C-C偶联，该偶联不能通过以前报道的方法有效地获得。这种温和而高效的C–C键形成策略将硫醇用作缺电子的烷基自由基前体以及氢源。氨基酸的两个实例也已通过使用该策略进行了修饰。而且，该方法可以应用于聚合物合成中。还介绍了这种转换的克级合成和机理见解。
• Copper-Catalyzed Conjugate Addition of Carbonyls as Carbanion Equivalent via Hydrazones
  作者：Siyi Luo、Marie Peng、Pierre Querard、Chen-Chen Li、Chao-Jun Li

  DOI：10.1021/acs.joc.1c01380

  日期：2021.9.17

  catalyzed by readily available copper complexes at room temperature. The employment of mesitylcopper(I) and electron-rich phosphine bidentate ligand is a key factor affecting reactivity. The reaction allows various aromatic hydrazones to react with diverse conjugated compounds to produce 1,4-adducts in yields of about 20 to 99%.

  铜催化的共轭加成是形成新碳-碳键的经典方法。然而，铜从未在腙化学中显示出对umpolung 碳负离子的催化活性。在此，我们报告了在室温下由容易获得的铜配合物催化的腙的轻松共轭加成。甲基铜（I）和富电子膦双齿配体的使用是影响反应性的关键因素。该反应允许各种芳族腙与各种共轭化合物反应，以约 20% 至 99% 的产率生成 1,4-加合物。
• [EN] BEXAROTENE DERIVATIVES AND THEIR USE IN TREATING CANCER<br/>[FR] DÉRIVÉS DU BEXAROTÈNE ET LEUR UTILISATION DANS LE TRAITEMENT DU CANCER
  申请人：DAWN SCIENT PHARMACEUTICALS LLC

  公开号：WO2019169270A1

  公开（公告）日：2019-09-06

  This disclosure relates to compositions and methods for treating cancer. Specifically, this disclosure relates to bexarotene derivatives, methods for treating cancer, autoimmune disorders, and/or skin dermatitis, and/or methods for increasing peripheral blood counts and/or improving immune system function.

  这份披露涉及治疗癌症的组合物和方法。具体而言，这份披露涉及贝沙罗汀衍生物，治疗癌症、自身免疫性疾病和/或皮肤皮炎的方法，以及增加外周血细胞计数和/或改善免疫系统功能的方法。
• A metal-free desulfurizing radical reductive C–C coupling of thiols and alkenes
  作者：Qixue Qin、Weijing Wang、Cheng Zhang、Song Song、Ning Jiao

  DOI：10.1039/c9cc05378f

  日期：——

  An intermolecular reductive C–C coupling of electrophilic alkyl radicals and alkenes has been developed. Thiols were used as both hydrogen-donating reagents and alkyl radical precursors in the presence of triethyl phosphite and radical initiator. A wide range of alkenes, including styrenes, and aliphatic olefins were well tolerated in this transformation. Mechanistic studies indicated that a phosphite

  已经开发出亲电烷基和烯烃的分子间还原性C–C偶联。在亚磷酸三乙酯和自由基引发剂的存在下，硫醇既用作给氢试剂，又用作烷基自由基前体。在这种转化中，包括苯乙烯和脂肪族烯烃在内的各种烯烃均具有良好的耐受性。机理研究表明，亚磷酸酯促进了硫醇的自由基脱硫，以进入亲电子烷基自由基，并且自由基链的扩散过程可能与这种转化有关。
• Synthesis and Antitumor Activity of Ring A- and F-Modified Hexacyclic Camptothecin Analogues
  作者：Masamichi Sugimori、Akio Ejima、Satoru Ohsuki、Kouichi Uoto、Ikuo Mitsui、Yasuyoshi Kawato、Yasuhide Hirota、Keiki Sato、Hirofumi Terasawa

  DOI：10.1021/jm970765q

  日期：1998.6.1

  and F-modified hexacyclic analogues of camptothecin were synthesized by Friedlander condensation of appropriately substituted bicyclic amino ketones with tricyclic ketone and were evaluated for cytotoxicity and topoisomerase I inhibitory activity. Seventeen of the compounds showed cytotoxic effects comparable or superior to those of 7-ethyl-10-hydroxycamptothecin (SN-38) against mouse leukemia P388 and

  通过适当取代的双环氨基酮与三环酮的弗里德兰德缩合合成喜树碱的19个A和F环修饰的六环类似物，并评价其细胞毒性和拓扑异构酶I抑制活性。17种化合物对小鼠白血病P388和人肿瘤细胞系HOC-21和QG-56的细胞毒性作用与7-乙基-10-羟基喜树碱（SN-38）相当或更好。在六环化合物的A环的5位上引入致密且感应吸电子的取代基，例如羟基，甲氧基，氯或氟基，显着提高了抗肿瘤活性。拓扑异构酶I抑制这些化合物的效力与其细胞毒性显示出良好的相关性。他们之中，