8-Bromo-6-chloro-2-(2-phenylethyl)-2,3-dihydrochromen-4-one | 1138464-47-7

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并吡喃
• 英文名称: 8-Bromo-6-chloro-2-(2-phenylethyl)-2,3-dihydrochromen-4-one
• CAS: 1138464-47-7
• 化学式: C₁₇H₁₄BrClO₂
• 分子量: 365.654
• InChiKey: HLRDZMIXYBBHQS-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.1
• 重原子数：
  21
• 可旋转键数：
  3
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.24
• 拓扑面积：
  26.3
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  8-Bromo-6-chloro-2-(2-phenylethyl)-2,3-dihydrochromen-4-one 在 copper(ll) bromide 作用下， 以 氯仿 、 乙酸乙酯 为溶剂， 反应 2.0h， 生成 3,8-dibromo-6-chloro-2-phenethylchroman-4-one
  参考文献：
  名称：

  Chroman-4-one- and Chromone-Based Sirtuin 2 Inhibitors with Antiproliferative Properties in Cancer Cells

  摘要：

  Sirtuins (SIRTs) catalyze the NAD(+)-dependent deacetylation of N-e-acetyl lysines on various protein substrates. SIRTs are interesting drug targets as they are considered to be related to important pathologies such as inflammation and aging-associated diseases. We have previously shown that chroman-4-ones act as potent and selective inhibitors of SIRT2. Herein we report novel chroman-4-one and chromone-based SIRT2 inhibitors containing various heterofunctionalities to improve pharmacokinetic properties. The compounds retained both high SIRT2 selectivity and potent inhibitory activity. Two compounds were tested for their antiproliferative effects in breast cancer (MCF-7) and lung carcinoma (A549) cell lines. Both compounds showed antiproliferative effects correlating with their SIRT2 inhibition potency. They also increased the acetylation level of a-tubulin, indicating that SIRT2 is likely to be the target in cancer cells. A binding mode of the inhibitors that is consistent with the SAR data was proposed based on a homology model of SIRT2.

  DOI：

  10.1021/jm500930h
• 作为产物：
  描述：

  苯丙醛 、 3'-溴-5'-氯-2'-羟基苯乙酮 在 N,N-二异丙基乙胺 作用下， 以 乙醇 为溶剂， 反应 1.0h， 以88%的产率得到8-Bromo-6-chloro-2-(2-phenylethyl)-2,3-dihydrochromen-4-one
  参考文献：
  名称：

  Synthesis and Evaluation of Substituted Chroman-4-one and Chromone Derivatives as Sirtuin 2-Selective Inhibitors

  摘要：

  A series of substituted chromone/chroman-4-one derivatives has been synthesized and evaluated as novel inhibitors of SIRT2, an enzyme involved in aging-related diseases, e.g., neurodegenerative disorders. The analogues were efficiently synthesized in a one-step procedure including a base-mediated aldol condensation using microwave irradiation. The most potent compounds, with inhibitory concentrations in the low micromolar range, were substituted in the 2-, 6-, and 8-positions. Larger, electron-withdrawing substituents in the 6- and 8-positions were favorable. The most potent inhibitor of SIRT2 was 6,8-dibromo-2-pentylchroman-4-one with an IC50 of 1.5 mu M. The synthesized compounds show high selectivity toward SIRT2 over SIRT1 and SIRT3 and represent an important starting point for the development of novel SIRT2 inhibitors.

  DOI：

  10.1021/jm3005288

文献信息

• Synthesis of 2-Alkyl-Substituted Chromone Derivatives Using Microwave Irradiation
  作者：Maria Fridén-Saxin、Nils Pemberton、Krystle da Silva Andersson、Christine Dyrager、Annika Friberg、Morten Grøtli、Kristina Luthman

  DOI：10.1021/jo802783z

  日期：2009.4.3

  A base-promoted condensation between 2-hydroxyacetophenones and aliphatic aldehydes has been studied. The reaction has been optimized to afford 2-alkyl-substituted 4-chromanones in an efficient manner using microwave heating. Performing the reaction using diisopropylamine in EtOH at 170 degrees C for 1 h gave moderate to high yields (43-88%). The 4-chromanones could be further converted into highly functionalized 2,3,6,8-tetrasubstituted chromones in which a 3-substituent (acetate, amine, or bromine) was introduced via straightforward chemical transformations.
• KHMDS Enhanced SmI₂-Mediated Reformatsky Type α-Cyanation
  作者：Tobias Ankner、Maria Fridén-Saxin、Nils Pemberton、Tina Seifert、Morten Grøtli、Kristina Luthman、Göran Hilmersson

  DOI：10.1021/ol100424y

  日期：2010.5.21

  A novel combination of SmI2, KHMDS, and TsCN can be utilized to introduce a cyano group into structurally diverse and highly sensitive 2-alkyl-chroman-4-ones. Subsequent oxidation allows the formed 2-alkyl-3-cyanochromones to be isolated in yields ranging from 49 to 77%. In addition, alpha-bromoketones and esters were found to undergo equally effective alpha-cyanation.
• Proline-mediated formation of novel chroman-4-one tetrahydropyrimidines
  作者：Maria Fridén-Saxin、Tina Seifert、Lars Kristian Hansen、Morten Grøtli、Mate Erdelyi、Kristina Luthman

  DOI：10.1016/j.tet.2012.06.077

  日期：2012.9

  Novel tricyclic N-benzylated chroman-4-one tetrahydropyrimidine derivatives have been prepared through a multi-component reaction between various 2-substituted chroman-4-one derivatives, N-methylenebenzylamine and a catalytic amount of proline under mild reaction conditions. The tricyclic structure of 1a was determined by NMR spectroscopy and confirmed by X-ray crystallography. An additional product, 2a, was isolated from the reaction mixture and its structure and conformation were determined by a combination of theoretical (Monte Carlo conformational search) and NMR-based (NOE and (3)J(HH) couplings) conformational analysis. The NMR analysis revealed one preferred geometry for 1a and 2a in CHCl3 solution. (C) 2012 Elsevier Ltd. All rights reserved.
• Chroman-4-one- and Chromone-Based Sirtuin 2 Inhibitors with Antiproliferative Properties in Cancer Cells
  作者：Tina Seifert、Marcus Malo、Tarja Kokkola、Karin Engen、Maria Fridén-Saxin、Erik A. A. Wallén、Maija Lahtela-Kakkonen、Elina M. Jarho、Kristina Luthman

  DOI：10.1021/jm500930h

  日期：2014.12.11

  Sirtuins (SIRTs) catalyze the NAD(+)-dependent deacetylation of N-e-acetyl lysines on various protein substrates. SIRTs are interesting drug targets as they are considered to be related to important pathologies such as inflammation and aging-associated diseases. We have previously shown that chroman-4-ones act as potent and selective inhibitors of SIRT2. Herein we report novel chroman-4-one and chromone-based SIRT2 inhibitors containing various heterofunctionalities to improve pharmacokinetic properties. The compounds retained both high SIRT2 selectivity and potent inhibitory activity. Two compounds were tested for their antiproliferative effects in breast cancer (MCF-7) and lung carcinoma (A549) cell lines. Both compounds showed antiproliferative effects correlating with their SIRT2 inhibition potency. They also increased the acetylation level of a-tubulin, indicating that SIRT2 is likely to be the target in cancer cells. A binding mode of the inhibitors that is consistent with the SAR data was proposed based on a homology model of SIRT2.
• Synthesis and Evaluation of Substituted Chroman-4-one and Chromone Derivatives as Sirtuin 2-Selective Inhibitors
  作者：Maria Fridén-Saxin、Tina Seifert、Marie Rydén Landergren、Tiina Suuronen、Maija Lahtela-Kakkonen、Elina M. Jarho、Kristina Luthman

  DOI：10.1021/jm3005288

  日期：2012.8.23

  A series of substituted chromone/chroman-4-one derivatives has been synthesized and evaluated as novel inhibitors of SIRT2, an enzyme involved in aging-related diseases, e.g., neurodegenerative disorders. The analogues were efficiently synthesized in a one-step procedure including a base-mediated aldol condensation using microwave irradiation. The most potent compounds, with inhibitory concentrations in the low micromolar range, were substituted in the 2-, 6-, and 8-positions. Larger, electron-withdrawing substituents in the 6- and 8-positions were favorable. The most potent inhibitor of SIRT2 was 6,8-dibromo-2-pentylchroman-4-one with an IC50 of 1.5 mu M. The synthesized compounds show high selectivity toward SIRT2 over SIRT1 and SIRT3 and represent an important starting point for the development of novel SIRT2 inhibitors.