N-isopropyl-benzo[b]thiophene-2-carboxamide | 1225021-80-6

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并噻吩类
• 英文名称: N-isopropyl-benzo[b]thiophene-2-carboxamide
• 英文别名: N-propan-2-yl-1-benzothiophene-2-carboxamide
• CAS: 1225021-80-6
• 化学式: C₁₂H₁₃NOS
• mdl: MFCD17681407
• 分子量: 219.307
• InChiKey: DPWODOAJSYASCU-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.4
• 重原子数：
  15
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  57.3
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  N-isopropyl-benzo[b]thiophene-2-carboxamide 在 二甲基二环氧乙烷 作用下， 以 二氯甲烷 、 丙酮 为溶剂， 反应 0.17h， 以98%的产率得到N-isopropylbenzo[b]thiophene-2-carboxamide 1,1-dioxide
  参考文献：
  名称：

  用H2O2和P2O5水溶液将贫电子的苯并[b]噻吩轻松氧化为相应的砜。

  摘要：

  描述了一种使用H（2）O（2）和P（2）O（5）的水溶液轻松氧化苯并[b]噻吩向其相应的砜的清晰转化的方法。该溶液可以制备并以多克的规模存储，保质期可达两周。

  DOI：

  10.1039/b924333j
• 作为产物：
  描述：

  苯并噻吩-2-羧酸 、 异丙胺 在 6-chloro-3-((dimethylamino)(dimethyliminio)methyl)-1H-benzo[d][1,2,3]triazol-3-ium-1-olatehexafluorophosphate(V) 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 以75%的产率得到N-isopropyl-benzo[b]thiophene-2-carboxamide
  参考文献：
  名称：

  Discovery of a Novel Class of Negative Allosteric Modulator of the Dopamine D₂ Receptor Through Fragmentation of a Bitopic Ligand

  摘要：

  Recently, we have demonstrated that N-((trans)-4-(2-(7-cyano-3,4-dihydroisoquinolin-2(1H)-yl)-ethyl)cyclohexyl)-1H-indole-2-carboxamide (0269652) (1) adopts a bitopic pose at one protomer of a dopamine D-2 receptor (D2R) dimer to negatively modulate the binding of dopamine at the other protomer. The 1H-indole-2-carboxamide moiety of 1 extends into a secondary pocket between the extracellular ends of TM2 and TM7 within the D2R protomer. To target this putative allosteric site, we generated and characterized fragments that include and extend from the 1H-indole-2-carboxamide moiety of 1. N-Isopropyl-1H-indole-2-carboxamide (3) displayed allosteric pharmacology and sensitivity to mutations of the same residues at the top of TM2 as was observed for 1. Using 3 as an "allosteric lead", we designed and synthesized an extensive fragment library to generate novel SAR and identify N-butyl-1H-indole-2-carboxamide (11d), which displayed both increased negative cooperativity and affinity for the D2R. These data illustrate that fragmentation of extended compounds can expose fragments with purely allosteric pharmacology.

  DOI：

  10.1021/acs.jmedchem.5b00585

文献信息

• Ketone Synthesis by Direct, Orthogonal Chemoselective Hydroacylation of Alkenes with Amides: Use of Alkenes as Surrogates of Alkyl Carbanions
  作者：Hui Geng、Pei‐Qiang Huang

  DOI：10.1002/cjoc.201900252

  日期：2019.8

  and direct transformation of carboxamides are two exciting areas that have attracted considerable attention in recent years. We report herein that secondary amides, the least reactive derivatives of carbonyl compounds, upon activated with triflic anhydride, can serve as effective hydroacylating reagents in partner with alkenes to yield ketones at ambient temperature. The method was applied to the one‐step

  烯烃的直接官能化和羧酰胺的直接转化是近年来令人瞩目的两个令人兴奋的领域。我们在此报道，仲酰胺，即羰基化合物的反应性最低的衍生物，在用三氟甲磺酸酐活化后，可以与烯烃一起作为有效的氢酰化试剂，在环境温度下产生酮。该方法已用于外消旋二氢芳基羟色酮的一步合成。在这种方法中，烯烃用作有机金属试剂的替代物，从而可以进行正交的化学选择性反应。许多烯烃（如camp烯和降冰片烯）的现成性允许一步合成酮，而传统方法则需要几个步骤。
• Versatile and chemoselective transformation of aliphatic and aromatic secondary amides to nitriles
  作者：Hui Geng、Pei-Qiang Huang

  DOI：10.1016/j.tet.2015.03.094

  日期：2015.6

  Triflic anhydride in combination with 2-fluoropyridine effectively dehydrates secondary amides to afford nitriles under mild reaction conditions. The reaction is general in scope and compatible with the use of aliphatic, α,β-unsaturated, aromatic, and heteroaromatic amides bearing either secondary, tertiary, or benzylic N-alkyl groups. The reaction also shows good to excellent chemoselectivity for the

  三氟甲磺酸酐与2-氟吡啶结合可有效地使仲酰胺脱水，在温和的反应条件下提供腈。该反应是一般性的，并且与带有仲，叔或苄基N-烷基的脂族，α，β-不饱和，芳族和杂芳族酰胺的使用相容。该反应还显示出对仲酰胺的良好的化学选择性至优异的化学选择性，并能耐受几个不稳定的官能团。
• Palladium-Catalyzed Domino C–S Coupling/Carbonylation Reactions: An Efficient Synthesis of 2-Carbonylbenzo[<i>b</i>]thiophene Derivatives
  作者：Fanlong Zeng、Howard Alper

  DOI：10.1021/ol200880m

  日期：2011.6.3

  A facile and selective palladium-catalyzed domino procedure has been developed for the preparation of 2-carbonylbenzo[b]thiophene derivatives from 2-gem-dihalovinylthiophenols. This protocol involves intramolecular C–S coupling/intermolecular carbonylation cascade sequences and allows access to various highly functionalized benzo[b]thiophenes in moderate yields.

  一种简便的和选择性的钯催化的多米诺程序已被开发用于2- carbonylbenzo [制备b ]从2-噻吩衍生物宝石-dihalovinylthiophenols。该方案涉及分子内C–S偶联/分子间羰基化级联序列，并允许以中等收率获得各种高度官能化的苯并[ b ]噻吩。
• US7576117B1
  申请人：——

  公开号：US7576117B1

  公开（公告）日：2009-08-18
• Discovery of a Novel Class of Negative Allosteric Modulator of the Dopamine D₂ Receptor Through Fragmentation of a Bitopic Ligand
  作者：Shailesh N. Mistry、Jeremy Shonberg、Christopher J. Draper-Joyce、Carmen Klein Herenbrink、Mayako Michino、Lei Shi、Arthur Christopoulos、Ben Capuano、Peter J. Scammells、J. Robert Lane

  DOI：10.1021/acs.jmedchem.5b00585

  日期：2015.9.10

  Recently, we have demonstrated that N-((trans)-4-(2-(7-cyano-3,4-dihydroisoquinolin-2(1H)-yl)-ethyl)cyclohexyl)-1H-indole-2-carboxamide (0269652) (1) adopts a bitopic pose at one protomer of a dopamine D-2 receptor (D2R) dimer to negatively modulate the binding of dopamine at the other protomer. The 1H-indole-2-carboxamide moiety of 1 extends into a secondary pocket between the extracellular ends of TM2 and TM7 within the D2R protomer. To target this putative allosteric site, we generated and characterized fragments that include and extend from the 1H-indole-2-carboxamide moiety of 1. N-Isopropyl-1H-indole-2-carboxamide (3) displayed allosteric pharmacology and sensitivity to mutations of the same residues at the top of TM2 as was observed for 1. Using 3 as an "allosteric lead", we designed and synthesized an extensive fragment library to generate novel SAR and identify N-butyl-1H-indole-2-carboxamide (11d), which displayed both increased negative cooperativity and affinity for the D2R. These data illustrate that fragmentation of extended compounds can expose fragments with purely allosteric pharmacology.