(E)-5-bromo-3-(2-nitroethenyl)-1H-indole | 131653-79-7

• 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: (E)-5-bromo-3-(2-nitroethenyl)-1H-indole
• 英文别名: (E)-5-bromo-3-(2-nitrovinyl)-1H-indole；5-bromo-3-((E)-2-nitrovinyl)-1H-indole；5-bromo-3-[(E)-2-nitrovinyl]-1H-indole；5-bromo-3-(2-nitroethenyl)-1H-indole；5-Bromo-3-(2-nitrovinyl)-1H-indole；5-bromo-3-[(E)-2-nitroethenyl]-1H-indole
• CAS: 131653-79-7
• 化学式: C₁₀H₇BrN₂O₂
• 分子量: 267.082
• InChiKey: QZIAWMREHPRQEK-ONEGZZNKSA-N

物化性质

• 熔点：
  178-181 °C (decomp)
• 沸点：
  457.1±30.0 °C(Predicted)
• 密度：
  1.719±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3
• 重原子数：
  15
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  61.6
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  (E)-5-bromo-3-(2-nitroethenyl)-1H-indole 在 sodium tetrahydroborate 、 lithium aluminium tetrahydride 、 三溴化硼 、 溶剂黄146 作用下， 以 四氢呋喃 、 甲醇 、 二氯甲烷 为溶剂， 反应 40.5h， 生成 eudistomin Y₂
  参考文献：
  名称：

  Total Synthesis and Biological Activity of Marine Alkaloid Eudistomins Y1–Y7 and Their Analogues

  摘要：

  优迪斯托明Y类化合物是一系列β-咔啉，最初从韩国南海附近的海鞘中分离出来。这些化合物含有溴取代基，这是海洋天然产物的典型特征之一。我们在此报道了七种新的基于β-咔啉的代谢物，即优迪斯托明Y1至Y7及其羟甲基化苯基衍生物的化学合成与生物学评价。利用溴取代色胺和溴取代苯基甘油醛作为关键中间体，通过酸催化的皮克特-斯彭格勒反应合成了优迪斯托明Y1至Y7及其衍生物，并通过1H和13C核磁共振及质谱进行了全面表征。生物学研究表明，所有化合物对乳腺癌细胞系MDA-231均显示出中等的生长抑制活性，IC50值在15至63μM之间，且羟甲基化苯基产品的抑制活性高于相应的天然产物优迪斯托明Y1至Y7。

  DOI：

  10.3390/md11051427
• 作为产物：
  描述：

  5-溴吲哚 在 氯化亚砜 、 ammonium acetate 作用下， 反应 2.08h， 生成 (E)-5-bromo-3-(2-nitroethenyl)-1H-indole
  参考文献：
  名称：

  托普斯汀C的结构和全合成的修订

  摘要：

  摘要 据报道，一种有效的合成方法是从容易获得的3-（2-硝基乙烯基）吲哚获得在吲哚N原子上具有保护基的（吲哚-3-基）乙烷-1，2-二胺。该方法包括将O-新戊酰基羟胺的无溶剂共轭加成至1-Boc-3-（2-硝基乙烯基）吲哚中，然后轻度还原加合物。所获得的（吲哚-3-基）乙烷-1，2-二胺是用于几类海洋生物碱的方便的合成前体。据报道，基于此方法的外消旋托普汀C（一种来自六聚体属（Hexadella sp。）的次生代谢产物）的第一全合成。最初提议的托普汀C的结构已被修改。 据报道，一种有效的合成方法是从容易获得的3-（2-硝基乙烯基）吲哚获得在吲哚N原子上具有保护基的（吲哚-3-基）乙烷-1，2-二胺。该方法包括将O-新戊酰基羟胺的无溶剂共轭加成至1-Boc-3-（2-硝基乙烯基）吲哚中，然后轻度还原加合物。所获得的（吲哚-3-基）乙烷-1，2-二胺是用于几类海洋生物碱的方便的合成前体。据报道

  DOI：

  10.1055/s-0036-1588731

文献信息

• Rhodium-Catalyzed Asymmetric Addition of Arylboronic Acids to Indolylnitroalkenes
  作者：Junwei Xing、Guihua Chen、Peng Cao、Jian Liao

  DOI：10.1002/ejoc.201101648

  日期：2012.2

  bioactive structures. Most approaches to access chiral indolylnitroethanes involve organocatalyzed or metal-catalyzed asymmetric FriedelCrafts reaction of indoles with nitroalkenes. We have developed an efficient approach to optically pure a-aryl-3-indolylnitroethanes through rhodium-catalyzed asymmetric 1,4-addition of arylboronic acids to indolylnitroalkenes. Excellent yields (up to 99?%) and enantiomeric

  吲哚基硝基乙烷及其衍生物是许多生物活性结构的关键中间体。大多数获得手性吲哚基硝基乙烷的方法涉及吲哚与硝基烯烃的有机催化或金属催化的不对称弗里德尔克来福特反应。我们开发了一种有效的方法，通过铑催化的芳基硼酸与吲哚基硝基烯烃的不对称 1,4-加成来制备光学纯的 α-芳基-3-吲哚基硝基乙烷。在温和条件下，手性吲哚基硝基乙烷的产率高（高达 99?%）和对映体过量（高达 99?% ee）。
• 3 amino alkyl indoles for use in treating migraine
  申请人：Glaxo Group Limited

  公开号：US04636521A1

  公开（公告）日：1987-01-13

  Compounds are disclosed of general formula (I) ##STR1## wherein R.sub.1 represents an alkyl, cycloalkyl, aryl or aralkyl group; R.sub.2, R.sub.3, R.sub.4, R.sub.6 and R.sub.7, which may be the same or different, each represents a hydrogen atom or a C.sub.1-3 alkyl group; R.sub.5 represents a hydrogen atom or an alkyl, cycloalkyl, alkenyl or an aralkyl group; or R.sub.4 and R.sub.5 together form an aralkylidene group or R.sub.4 and R.sub.5 together with the nitrogen atom to which they are attached form a saturated monocyclic 5- to 7-membered ring; Alk represents an alkylene chain containing two or three carbon atoms which may be unsubstituted or substituted by not more than two C.sub.1-3 alkyl groups; and physiologically acceptable salts, solvates and bioprecursors thereof. The compounds are described as potentially useful for the treatment of migraine and may be formulated as pharmaceutical compositions in conventional manner using one or more pharmaceutically acceptable carriers or excipients. Various processes for the preparation of the compounds are disclosed including, for example, a process involving reaction of an aminoalkyl indole with a sulphonylating agent in order to introduce the --SO.sub.2 -- group at the 5-position on the indole nucleus.

  揭示了一般式(I)的化合物 ##STR1## 其中R.sub.1代表烷基、环烷基、芳基或芳基烷基；R.sub.2、R.sub.3、R.sub.4、R.sub.6和R.sub.7，可以相同也可以不同，每个代表氢原子或C.sub.1-3烷基；R.sub.5代表氢原子或烷基、环烷基、烯基或芳基烷基；或者R.sub.4和R.sub.5一起形成芳基烷基亚甲基团或者R.sub.4和R.sub.5与它们连接的氮原子一起形成饱和的单环5-至7-成员环；Alk代表含有两个或三个碳原子的烷基链，可以未经取代或通过不超过两个C.sub.1-3烷基取代；以及其生理上可接受的盐、溶剂和生物前体。这些化合物被描述为潜在用于治疗偏头痛，并且可以以常规方式制备为含有一种或多种药学上可接受的载体或赋形剂的药物组合物。揭示了各种制备这些化合物的方法，例如，涉及氨基烷基吲哚与磺酰化试剂反应以在吲哚核上的5位引入--SO.sub.2--基团的过程。
• Chiral Bis‐phosphate Macrocycles for Catalytic, Efficient, and Enantioselective Electrophilic Fluorination
  作者：Lie‐Wei Zhang、Xu‐Dong Wang、Yu‐Fei Ao、De‐Xian Wang、Qi‐Qiang Wang

  DOI：10.1002/chem.202400498

  日期：2024.4.25

  Bis-phosphate macrocycles have been designed with an integrated chiral cavity and two cooperative phosphate sites for accommodating DABCO dications through complementary ion-pair interactions. Only 2 mol% of the macrocycle was necessary for efficiently catalyzing the fluorocyclization of tryptamines in up to 91 % ee, thus significantly outperforming the acyclic counterparts (lower reactivity; <20 %

  双磷酸大环化合物被设计为具有集成的手性空腔和两个协作磷酸位点，用于通过互补离子对相互作用容纳 DABCO 双阳离子。只需 2 mol% 的大环即可有效催化高达 91% ee 的色胺氟环化，因此显着优于无环对应物（较低的反应性；<20% ee）。
• Melatonin Receptor Ligands:  Synthesis of New Melatonin Derivatives and Comprehensive Comparative Molecular Field Analysis (CoMFA) Study
  作者：Marco Mor、Silvia Rivara、Claudia Silva、Fabrizio Bordi、Pier Vincenzo Plazzi、Gilberto Spadoni、Giuseppe Diamantini、Cesarino Balsamini、Giorgio Tarzia、Franco Fraschini、Valeria Lucini、Romolo Nonno、Bojidar Michaylov Stankov

  DOI：10.1021/jm9810093

  日期：1998.9.1

  The CoMFA methodology was applied to melatonin receptor ligands in order to establish quantitative structure-affinity relationships. One hundred thirty-three compounds were considered: they were either collected from literature or newly synthesized in order to gain information about the less explored positions. To this end, various melatonin derivatives were prepared and their affinity for quail optic tecta melatonin receptor was tested. Compounds were aligned on the putative active conformation of melatonin proposed by our previously reported pharmacophore search, and their relative affinities were calculated from the displacement of 2-[I-125]-iodomelatonin on different tissues expressing aMT receptors. Compounds were grouped into three sets according to their topology. Subset A: melatonin-like compounds; subset B: N-acyl-2-amino-8-methoxytetralins and related compounds; subset C: N-acyl-phenylalkylamines and related compounds. CoMFA models were derived for each set, using the steric, electrostatic, and lipophilic fields as structural descriptors; the PLS analyses were characterized by good statistical parameters, taking into account the heterogeneity of the binding data, obtained with different experimental protocols. From the CoMFA model for the melatonin-like compounds, besides the well-known positive effect of 2-substitution, a low steric tolerance for substituents in 1, 6, and 7, and a negative effect of electron-rich 4-substituents were observed; the information provided by the newly synthesized compounds was essential for these results. Moreover, a comprehensive model for the 133 compounds, accounting for a common alignment and a common mode of interaction at the melatonin receptor, was derived (Q(2) = 0.769, R-2 = 0.905). This model validates our previously reported pharmacophore search and offers a clear depiction of the structure-affinity relationships for the melatonin receptor ligands.
• Enantioselective Brønsted Acid-Catalyzed <i>N</i>-Acyliminium Cyclization Cascades
  作者：Michael E. Muratore、Chloe A. Holloway、Adam W. Pilling、R. Ian Storer、Graham Trevitt、Darren J. Dixon

  DOI：10.1021/ja9024885

  日期：2009.8.12

  An enantioselective Bronsted acid-catalyzed N-acyliminium cyclization cascade of tryptamines with enol lactones to form architecturally complex heterocycles in high enantiomeric excess has been developed. The reaction is technically simple to perform as well as atom-efficient and may be coupled to a gold(1)-catalyzed cycloisomerization of alkynoic acids whereby the key enol lactone reaction partner is generated in situ. Employing up to 10 mol% bulky chiral phosphoric acid catalysts in boiling toluene allowed the product materials to be generated in good overall yields (63-99%) and high enantioselectivities (72-99% ee). With doubly substituted enol lactones, high diastereo- and enantioselectivities were obtained, thus providing a new example of a dynamic kinetic asymmetric cyclization reaction.