[(amino-phenylmethylidene)amino] 2-chloroacetate

• 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: [(amino-phenylmethylidene)amino] 2-chloroacetate
• 化学式: C₉H₉ClN₂O₂
• mdl: MFCD24389057
• 分子量: 212.636
• InChiKey: HLSMONLHCHDVJC-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.8
• 重原子数：
  14
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.111
• 拓扑面积：
  64.7
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  [(amino-phenylmethylidene)amino] 2-chloroacetate 在 四丁基氢氧化铵 作用下， 以 四氢呋喃 、 水 为溶剂， 反应 0.17h， 以64%的产率得到5-(氯甲基)-3-苯基-1,2,4-氧二唑
  参考文献：
  名称：

  氢氧化四丁铵引发的3,5-取代1,2,4-恶二唑环的构建：O-酰基酰胺基肟的高效无氟闭环反应

  摘要：

  氢氧化四丁基铵（TBAH）是氟化四丁基铵（TBAF）的一种高效，温和的替代品，用于由O-酰基酰胺基肟对1,2,4-恶二唑进行碱催化的环化反应。对于大多数3,5-取代的1,2,4-恶二唑，在室温下通过添加0.1当量的TBAH可以显着加速反应。该方法也更普遍地适用于允许更大范围的基板。另外，由于不存在氟化物，TBAH不会导致反应堆容器的腐蚀，因此更适合大规模合成。

  DOI：

  10.1016/j.tetlet.2013.12.016
• 作为产物：
  描述：

  苯甲腈 在 盐酸羟胺 、 potassium carbonate 、 三乙胺 作用下， 以 甲醇 、 丙酮 为溶剂， 反应 12.0h， 生成 [(amino-phenylmethylidene)amino] 2-chloroacetate
  参考文献：
  名称：

  Discovery and preliminary evaluation of 2-aminobenzamide and hydroxamate derivatives containing 1,2,4-oxadiazole moiety as potent histone deacetylase inhibitors

  摘要：

  Using Entinostat as a lead compound, 2-aminobenzamide and hydroxamate derivatives have been designed and synthesized. The entire target compounds were investigated for their in vitro anti-proliferative activities using the MTT-based assay against five human cancer cell lines including U937, A549, NCI-H661, MDA-MB-231 and HCT116. 2-Aminobenzamide series of compounds (10a-10j) demonstrated the most significant inhibition against human acute monocytic myeloid leukemia cell line U937, but no or poor activities against two human lung cancer cell lines. Furthermore, the target compounds were screened for their inhibitory activities against HDAC 1, 2, and 8. 2-Aminobenzamide derivatives (10) manifested a higher selectivity for HDAC 1 over HDAC 2, but were not active against HDAC 8. In contrast, most hydroxamate derivatives (11) inhibit HDAC 8 with lower IC50 values than SAHA and Entinostat. Docking study with selected compounds 10f and ha revealed that the compounds might bind tightly to the binding pockets in HDAC 2 and HDAC 8, respectively. The results suggest that they may be promising lead compounds for the development of novel anti-tumor drug potentially via inhibiting HDACs. (C) 2015 Elsevier Masson SAS. All rights reserved.

  DOI：

  10.1016/j.ejmech.2015.04.002

文献信息

• Synthesis of 3,5-disubstituted-1,2,4-oxadiazoles using tetrabutylammonium fluoride as a mild and efficient catalyst
  作者：Anthony R Gangloff、Joane Litvak、Emma J Shelton、David Sperandio、Vivian R Wang、Kenneth D Rice

  DOI：10.1016/s0040-4039(00)02288-7

  日期：2001.2

  Tetrabutylammonium fluoride (TBAF) was found to be a mild and efficient catalyst for the synthesis of 3,5-disubstituted-1,2,4-oxadiazoles. Using 0.1–1.0 equivalents of TBAF in THF for 1–24 h at room temperature, alkanoyl- and aroyloxyamidines were converted in high yield to the corresponding 3,5-disubstituted-1,2,4-oxadiazoles. A variety of R and R′ substituents were investigated.

  发现四丁基氟化铵（TBAF）是合成3,5-二取代-1,2,4-恶二唑的温和而有效的催化剂。在室温下，使用THF中的0.1–1.0当量的TBAF，在室温下放置1–24小时，可以将烷酰基-和芳酰氧基am以高收率转化为相应的3,5-二取代-1,2,4-恶二唑。研究了各种R和R'取代基。
• Construction of 3,5-substituted 1,2,4-oxadiazole rings triggered by tetrabutylammonium hydroxide: a highly efficient and fluoride-free ring closure reaction of O-acylamidoximes
  作者：Hiromichi Otaka、Junya Ikeda、Daisuke Tanaka、Masanori Tobe

  DOI：10.1016/j.tetlet.2013.12.016

  日期：2014.1

  Tetrabutylammonium hydroxide (TBAH) is an efficient and mild alternative to tetrabutylammonium fluoride (TBAF) for base catalyzed cyclizations of 1,2,4-oxadiazoles from O-acylamidoximes. For most 3,5-substituted 1,2,4-oxadiazoles the reactions were dramatically accelerated by addition of 0.1 equiv of TBAH at room temperature. This method was also more generally applicable allowing for a wider range

  氢氧化四丁基铵（TBAH）是氟化四丁基铵（TBAF）的一种高效，温和的替代品，用于由O-酰基酰胺基肟对1,2,4-恶二唑进行碱催化的环化反应。对于大多数3,5-取代的1,2,4-恶二唑，在室温下通过添加0.1当量的TBAH可以显着加速反应。该方法也更普遍地适用于允许更大范围的基板。另外，由于不存在氟化物，TBAH不会导致反应堆容器的腐蚀，因此更适合大规模合成。
• Oxadiazole-isopropylamides as Potent and Noncovalent Proteasome Inhibitors
  作者：Sevil Ozcan、Aslamuzzaman Kazi、Frank Marsilio、Bin Fang、Wayne C. Guida、John Koomen、Harshani R. Lawrence、Saïd M. Sebti

  DOI：10.1021/jm400221d

  日期：2013.5.23

  inhibited chymotrypsin-like (CT-L) activity (IC50 = 0.60 μM) with little effects on the other two major proteasome proteolytic activities, trypsin-like (T-L) and postglutamyl-peptide-hydrolysis-like (PGPH-L). LC–MS/MS and dialysis show that 1 is a noncovalent and rapidly reversible CT-L inhibitor. Focused library synthesis provided 11ad (PI-1840) with CT-L activity (IC50 = 27 nM). Detailed SAR studies

  对 50 000 ChemBridge 化合物库的筛选导致鉴定出恶二唑-异丙基酰胺1 (PI-1833)，其抑制胰凝乳蛋白酶样 (CT-L) 活性（IC 50 = 0.60 μM），对其他两种主要蛋白酶体几乎没有影响蛋白水解活性，胰蛋白酶样 (TL) 和谷氨酰肽水解样 (PGPH-L)。LC-MS/MS 和透析表明1是一种非共价且快速可逆的 CT-L 抑制剂。集中文库合成为11ad (PI-1840) 提供了 CT-L 活性 (IC 50= 27 纳米）。详细的 SAR 研究表明酰胺部分和两个苯环对修饰敏感。疏水性残基，如在对位丙基或丁基（未邻位或间位）的A环和一个的米-吡啶基团作为B环，显著提高活性。化合物11ad (IC 50 = 0.37 μM)在抑制完整 MDA-MB-468 人乳腺癌细胞中的 CT-L 活性和抑制其存活方面比1 (IC 50 = 3.5 μM)更有效。11ad的活
• Potent, orally active aldose reductase inhibitors related to zopolrestat: surrogates for benzothiazole side chain
  作者：Banavara L. Mylari、Thomas A. Beyer、Pamela J. Scott、Charles E. Aldinger、Michael F. Dee、Todd W. Siegel、William J. Zembrowski

  DOI：10.1021/jm00081a006

  日期：1992.2

  broad structure-activity program was undertaken in search of effective surrogates for the key benzothiazole side chain of the potent aldose reductase inhibitor, zopolrestat (1). A structure-driven approach was pursued, which spanned exploration of three areas: (1) 5/6 fused heterocycles such as benzoxazole, benzothiophene, benzofuran, and imidazopyridine; (2) 5-membered heterocycles, including oxadiazole

  为了寻找有效的醛糖还原酶抑制剂zopolrestat（1）的关键苯并噻唑侧链的有效替代物，进行了广泛的结构活性程序。追求结构驱动的方法，该方法涵盖了三个领域的探索：（1）5/6稠合杂环，如苯并恶唑，苯并噻吩，苯并呋喃和咪唑并吡啶；（2）5元杂环，包括带有侧基芳基的恶二唑，恶唑，噻唑和噻二唑，以及（3）苯并噻唑的形式当量的硫代苯胺。在糖尿病并发症的一项急性试验中，发现几种苯并恶唑和1,2,4-恶二唑衍生的类似物是有效的人胎盘醛糖还原酶抑制剂，并且在防止大鼠坐骨神经中山梨醇蓄积方面具有口服活性。3,4-Dihydro-4-oxo-3-[（5，（7-二氟-2-苯并恶唑基）甲基] -1-酞嗪乙酸（124）是苯并恶唑系列中最好的（IC50 = 3.2 x 10（-9）M）; 当口服剂量为10 mg / kg时，它可将山梨醇在大鼠坐骨神经中的蓄积抑制78％。化合物139，3,4-二氢-4-氧代-3-[[[（（2-氟苯基）-1
• PROTEASOME CHYMOTRYPSIN-LIKE INHIBITION USING PI-1833 ANALOGS
  申请人：H. Lee Moffitt Cancer Center and Research Institute, Inc

  公开号：US20140073650A1

  公开（公告）日：2014-03-13

  Focused library synthesis and medicinal chemistry on an oxadiazole-isopropylamide core proteasome inhibitor provided the lead compound that strongly inhibits CT-L activity. Structure activity relationship studies indicate the amide moiety and two phenyl rings are sensitive toward synthetic modifications. Only para-substitution in the A-ring was important to maintain potent CT-L inhibitory activity. Hydrophobic residues in the A-ring's para-position and meta-pyridyl group at the B-ring significantly improved inhibition. The meta-pyridyl moiety improved cell permeability. The length of the aliphatic chain at the para position of the A-ring is critical with propyl yielding the most potent inhibitor, whereas shorter (i.e. ethyl, methyl or hydrogen) or longer (i.e. butyl, propyl and hexyl) chains demonstrating progressively less potency. Introduction of a stereogenic center next to the ether moiety (i.e. substitution of one of the hydrogens by methyl) demonstrated chiral discrimination in proteasome CT-L activity inhibition (the S-enantiomer was 35-40 fold more potent than the R-enantiomer).

  聚焦于氧代二唑-异丙酰胺核心蛋白酶体抑制剂的合成和药物化学，提供了一种强烈抑制CT-L活性的先导化合物。结构活性关系研究表明，酰胺基团和两个苯环对合成修饰非常敏感。只有在A环上的对位取代对维持强效的CT-L抑制活性至关重要。A环对位的疏水基团和B环的间吡啶基团显著提高了抑制作用。间吡啶基团提高了细胞渗透性。A环对位的脂肪链长度是关键，丙基产生了最有效的抑制剂，而较短（即乙基，甲基或氢）或较长（即丁基，异丙基和己基）的链逐渐表现出较少的效力。在醚基团旁引入一个立体异构中心（即将一个氢原子取代为甲基）表明在蛋白酶体CT-L活性抑制中具有手性歧视（S-对映体比R-对映体更有效，效力提高了35-40倍）。