3,4-dibromophenylacetic acid | 619323-15-8

• 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: 3,4-dibromophenylacetic acid
• 英文别名: 2-(3,4-dibromophenyl)acetic acid；3,4-Dibromphenyl-essigsaeure
• CAS: 619323-15-8
• 化学式: C₈H₆Br₂O₂
• 分子量: 293.942
• InChiKey: SARHWCIVOIXKHS-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.8
• 重原子数：
  12
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.12
• 拓扑面积：
  37.3
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  3,4-dibromophenylacetic acid 在 (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride 、 甲酸 、 二异丁基氢化铝 、 1-羟基苯并三唑 、 钯 、 盐酸-N-乙基-Nˊ-(3-二甲氨基丙基)碳二亚胺 作用下， 以 四氢呋喃 、 二氯甲烷 、 水 、 甲苯 为溶剂， 反应 52.0h， 生成 C₁₉H₂₂N₂O₃S
  参考文献：
  名称：

  The identification of 7-[(R)-2-((1S,2S)-2-benzyloxycyclopentylamino)-1-hydroxyethyl]-4-hydroxybenzothiazolone as an inhaled long-acting β2-adrenoceptor agonist

  摘要：

  The optimisation of two series of 4-hydroxybenzothiazolone derived β2-adrenoceptor agonists, bearing α-substituted cyclopentyl and β-phenethyl amino-substituents, as inhaled long-acting bronchodilators is described. Analogues were selected for synthesis using a lipophilicity based hypothesis to achieve the targeted rapid onset of action in combination with a long duration of action. The profiling of the two series led to identification of the α-substituted cyclopentyl analogue 2 as the optimal compound with a comparable profile to the inhaled once-daily long-acting β2-adrenoceptor agonist indacaterol. On the basis of these data 2 was promoted as the backup development candidate to indacaterol from the Novartis LABA project.

  DOI：

  10.1016/j.bmcl.2014.06.014
• 作为产物：
  描述：

  1,2-二溴-4-(溴甲基)苯 在 lithium hydroxide 作用下， 以 甲醇 、 乙醇 、 水 为溶剂， 反应 82.0h， 生成 3,4-dibromophenylacetic acid
  参考文献：
  名称：

  Synthesis and structure–antifungal activity Relationships of 3-Aryl-5-alkyl-2,5-dihydrofuran-2-ones and Their Carbanalogues: further refinement of tentative pharmacophore group

  摘要：

  Two series of 3-(substituted phenyl)-5-alkyl-2,5-dihydrofuran-2-ones related to a natural product, (-)incrustoporine, were synthesized and their in vitro antifungal activity evaluated. The compounds with halogen substituents on the phenyl ring exhibited selective antifungal activity against the filamentous strains of Absidia corymbifera and Aspergillus fumigatus. On the other hand, the influence of the lenghth of the alkyl chain at C(5) was marginal. The antifungal effect of the most active compound against the above strains was higher than that of ketoconazole, and close to that of amphotericin B. In order to verify the hypothesis about a possible relationship between the Michael-accepting ability of the compounds and their antifungal activity, a series of simple carbanalogues, 2-(substituted phenyl)cyclopent-2-enones, was prepared and subjected to antifungal activity assay as well. (C) 2003 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0968-0896(03)00220-7

文献信息

• Functionalization of Piperidine Derivatives for the Site‐Selective and Stereoselective Synthesis of Positional Analogues of Methylphenidate
  作者：Wenbin Liu、Tobias Babl、Alexander Röther、Oliver Reiser、Huw M. L. Davies

  DOI：10.1002/chem.201905773

  日期：2020.4

  Rhodium-catalyzed C-H insertions and cyclopropanations of donor/acceptor carbenes have been used for the synthesis of positional analogues of methylphenidate. The site selectivity is controlled by the catalyst and the amine protecting group. C-H functionalization of N-Boc-piperidine using Rh2 (R-TCPTAD)4 , or N-brosyl-piperidine using Rh2 (R-TPPTTL)4 generated 2-substitited analogues. In contrast,

  铑催化的供体/受体碳烯的CH插入和环丙烷化已用于合成哌醋甲酯的位置类似物。位置选择性由催化剂和胺保护基控制。使用Rh2（R-TCPTAD）4的N-Boc-哌啶的CH官能化，或使用Rh2（R-TPPTTL）4的N-溴化哌啶的CH官能化生成2取代的类似物。相反，当将N-α-氧代芳基乙酰基-哌啶与Rh2（S-2-Cl-5-BrTPCP）4组合使用时，CH官能化会产生4位被怀疑的类似物。最后，通过N-Boc-四氢吡啶的环丙烷化，然后还原环丙烷的立体和立体选择性开环，间接制备3-取代的类似物。
• Synthesis of potent inhibitors of histidinol dehydrogenase
  作者：Jane E. Dancer、Mark J. Ford、Kenneth Hamilton、Michael Kilkelly、Stephen D. Lindell、Mary J. O'Mahony、Elizabeth A. Saville-Stones

  DOI：10.1016/0960-894x(96)00384-8

  日期：1996.9

  Novel inhibitors of histidinol dehydrogenase are described. The most potent inhibitors, compounds 18 (K-i* = 4.4 nM) and 19 (K-i* = 2.9 nM) exploit a hitherto unreported lipophilic binding pocket adjoining the active site. Preliminary SAR data for this pocket are detailed. The electrophilic ketone 6 designed to bind to an active site nucleophile was a considerably weaker inhibitor (IC50 similar to 20 mu M). Copyright (C) 1996 Elsevier Science Ltd
• Phenethylamine derivatives and intermediates therefor
  申请人：AMERICAN HOME PRODUCTS CORPORATION

  公开号：EP0112669B1

  公开（公告）日：1987-07-29
• US4535186A
  申请人：——

  公开号：US4535186A

  公开（公告）日：1985-08-13
• US4611078A
  申请人：——

  公开号：US4611078A

  公开（公告）日：1986-09-09