5-(4,4,5,5-四甲基-1,3,2-二噁硼烷-2-基)-2,3-二氢-1-苯并呋喃 | 937591-69-0

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 香豆素
• 中文名称: 5-(4,4,5,5-四甲基-1,3,2-二噁硼烷-2-基)-2,3-二氢-1-苯并呋喃
• 中文别名: 2,3-二氢苯并呋喃-5-硼酸频哪醇酯
• 英文名称: 2-(2,3-dihydrobenzofuran-5-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
• 英文别名: 2-(2,3-dihydro-1-benzofuran-5-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
• CAS: 937591-69-0
• 化学式: C₁₄H₁₉BO₃
• 分子量: 246.114
• InChiKey: RWJUUXWJBMIGKA-UHFFFAOYSA-N

物化性质

• 沸点：
  350.6±31.0 °C(Predicted)
• 密度：
  1.09±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.92
• 重原子数：
  18
• 可旋转键数：
  1
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.57
• 拓扑面积：
  27.7
• 氢给体数：
  0
• 氢受体数：
  3

安全信息

• 海关编码：
  2934999090
• 危险性防范说明：
  P261,P305+P351+P338
• 危险性描述：
  H315,H319,H335
• 储存条件：
  2-8°C

SDS

Material Safety Data Sheet

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Section 1. Identification of the substance
Product Name: 2,3-Dihydrobenzofuran-5-boronic acid pinacol ester
Synonyms:

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Section 2. Hazards identification
Harmful by inhalation, in contact with skin, and if swallowed.

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Section 3. Composition/information on ingredients.
Ingredient name: 2,3-Dihydrobenzofuran-5-boronic acid pinacol ester
CAS number: 937591-69-0

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Section 4. First aid measures
Skin contact: Immediately wash skin with copious amounts of water for at least 15 minutes while removing
contaminated clothing and shoes. If irritation persists, seek medical attention.
Eye contact: Immediately wash skin with copious amounts of water for at least 15 minutes. Assure adequate
flushing of the eyes by separating the eyelids with fingers. If irritation persists, seek medical
attention.
Inhalation: Remove to fresh air. In severe cases or if symptoms persist, seek medical attention.
Ingestion: Wash out mouth with copious amounts of water for at least 15 minutes. Seek medical attention.

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Section 5. Fire fighting measures
In the event of a fire involving this material, alone or in combination with other materials, use dry
powder or carbon dioxide extinguishers. Protective clothing and self-contained breathing apparatus
should be worn.

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Section 6. Accidental release measures
Personal precautions: Wear suitable personal protective equipment which performs satisfactorily and meets local/state/national
standards.
Respiratory precaution: Wear approved mask/respirator
Hand precaution: Wear suitable gloves/gauntlets
Skin protection: Wear suitable protective clothing
Eye protection: Wear suitable eye protection
Methods for cleaning up: Mix with sand or similar inert absorbent material, sweep up and keep in a tightly closed container
for disposal. See section 12.
Environmental precautions: Do not allow material to enter drains or water courses.

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Section 7. Handling and storage
Handling: This product should be handled only by, or under the close supervision of, those properly qualified
in the handling and use of potentially hazardous chemicals, who should take into account the fire,
health and chemical hazard data given on this sheet.
Store in closed vessels.
Storage:

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Section 8. Exposure Controls / Personal protection
Engineering Controls: Use only in a chemical fume hood.
Personal protective equipment: Wear laboratory clothing, chemical-resistant gloves and safety goggles.
General hydiene measures: Wash thoroughly after handling. Wash contaminated clothing before reuse.

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Section 9. Physical and chemical properties
Appearance: Not specified
Boiling point: No data
No data
Melting point:
Flash point: No data
Density: No data
Molecular formula: C14H19BO3
Molecular weight: 246.1

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Section 10. Stability and reactivity
Conditions to avoid: Heat, flames and sparks.
Materials to avoid: Oxidizing agents.
Possible hazardous combustion products: Carbon monoxide.

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Section 11. Toxicological information
No data.

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Section 12. Ecological information
No data.

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Section 13. Disposal consideration
Arrange disposal as special waste, by licensed disposal company, in consultation with local waste
disposal authority, in accordance with national and regional regulations.

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Section 14. Transportation information
Non-harzardous for air and ground transportation.

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Section 15. Regulatory information
No chemicals in this material are subject to the reporting requirements of SARA Title III, Section
302, or have known CAS numbers that exceed the threshold reporting levels established by SARA
Title III, Section 313.

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SECTION 16 - ADDITIONAL INFORMATION
N/A

反应信息

• 作为反应物：
  描述：

  5-(4,4,5,5-四甲基-1,3,2-二噁硼烷-2-基)-2,3-二氢-1-苯并呋喃 在 1,1'-双(二苯膦基)二茂铁二氯化钯(II)二氯甲烷复合物 、 lithium hydroxide monohydrate 、 potassium carbonate 作用下， 以 四氢呋喃 、 1,4-二氧六环 、 甲醇 、 水 为溶剂， 反应 18.0h， 生成 (R)-1-(2-((6-amino-9H-purin-9-yl)methyl)-5-chloro-3-(2,3-dihydrobenzofuran5-yl)phenyl)-3-((tert-butoxycarbonyl)amino)pyrrolidine-3-carboxylic acid
  参考文献：
  名称：

  [EN] MLL1 INHIBITORS AND ANTI-CANCER AGENTS
  [FR] INHIBITEURS DE MLL1 ET AGENTS ANTICANCÉREUX

  摘要：

  本发明提供了化合物的结构式(I)：或其对映体、对映体混合物或其药用可接受的盐；其中变量如本文所定义。本发明还提供了包含这些化合物的药物组合物；以及利用这些化合物治疗由混合系谱白血病1（MLL）介导的疾病或症状的方法。

  公开号：

  WO2021053617A1
• 作为产物：
  描述：

  5-溴苯并呋喃 在 (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride 、 palladium 10% on activated carbon 、 氢气 、 potassium acetate 作用下， 以 甲醇 、 N,N-二甲基甲酰胺 为溶剂， 40.0~90.0 ℃ 、103.42 kPa 条件下， 反应 60.0h， 生成 5-(4,4,5,5-四甲基-1,3,2-二噁硼烷-2-基)-2,3-二氢-1-苯并呋喃
  参考文献：
  名称：

  PYRIMIDINE SULFAMIDE DERIVATIVE AND PREPARATION METHOD AND MEDICAL APPLICATION THEREOF

  摘要：

  揭示了一系列嘧啶磺胺化合物及其在制备与ET受体拮抗剂相关疾病的药物中的应用。具体地，揭示了由式(I)表示的衍生化合物，或其互变异构体或药用可接受的组合物。

  公开号：

  US20200283425A1

文献信息

• Discovery and Structure–Activity Relationships of <i>N</i> ‐Aryl 6‐Aminoquinoxalines as Potent PFKFB3 Kinase Inhibitors
  作者：Nicolas Boutard、Arkadiusz Białas、Aleksandra Sabiniarz、Paweł Guzik、Katarzyna Banaszak、Artur Biela、Marcin Bień、Anna Buda、Barbara Bugaj、Ewelina Cieluch、Anna Cierpich、Łukasz Dudek、Hans‐Michael Eggenweiler、Joanna Fogt、Monika Gaik、Andrzej Gondela、Krzysztof Jakubiec、Mirek Jurzak、Agata Kitlińska、Piotr Kowalczyk、Maciej Kujawa、Katarzyna Kwiecińska、Marcin Leś、Ralph Lindemann、Monika Maciuszek、Maciej Mikulski、Paulina Niedziejko、Alicja Obara、Henryk Pawlik、Tomasz Rzymski、Magdalena Sieprawska‐Lupa、Marta Sowińska、Joanna Szeremeta‐Spisak、Agata Stachowicz、Mateusz M. Tomczyk、Katarzyna Wiklik、Łukasz Włoszczak、Sylwia Ziemiańska、Adrian Zarębski、Krzysztof Brzózka、Mateusz Nowak、Charles‐Henry Fabritius

  DOI：10.1002/cmdc.201800569

  日期：2019.1.8

  is the ubiquitous and hypoxia‐induced isoform of PFK‐2, are reported. X‐ray crystallography and docking were instrumental in the design and optimisation of a series of N‐aryl 6‐aminoquinoxalines. The most potent representative, N‐(4‐methanesulfonylpyridin‐3‐yl)‐8‐(3‐methyl‐1‐benzothiophen‐5‐yl)quinoxalin‐6‐amine, displayed an IC50 of 14 nm for the target and an IC50 of 0.49 μm for fructose‐2,6‐biphosphate

  癌细胞的能量和生物质生产在很大程度上被有氧糖酵解所支持，这就是所谓的Warburg效应。该过程受关键酶的调节，其中磷酸果糖激酶PFK-2通过产生果糖-2,6-二磷酸而起重要作用。磷酸果糖激酶PFK-1执行的最有效的糖酵解限速步骤激活剂。本文介绍了6-磷酸果糖-2-激酶/果糖-2,6-二磷酸酯酶3（PFKFB3）的新型抑制剂的合成，生物学评估以及其结构与活性之间的关系，PFKFB3是一种普遍存在且由低氧引起的PFK-2亚型，被报道。X射线晶体学和对接有助于设计和优化一系列N-芳基6-氨基喹喔啉。最有力的代表，N-（4-甲磺酰基吡啶-3-基）-8-（3-甲基-1-苯并噻吩-5-基）喹喔啉-6-胺，目标物的IC 50为14 n m，0.4的IC 50为0.49μm m为人类结肠癌HCT116细胞中果糖2,6-二磷酸的产生。这项工作为PFKFB3抑制剂领域的发展提供了新的机会。
• [EN] SUBSTITUTED QUINOXALINE DERIVATIVES<br/>[FR] DÉRIVÉS DE QUINOXALINE SUBSTITUÉS
  申请人：SELVITA S A

  公开号：WO2016180537A1

  公开（公告）日：2016-11-17

  The present invention relates to substituted quinoxaline derivatives. These compounds are useful for the prevention and/or treatment of several medical conditions including hyperproliferative disorders and diseases.

  这项发明涉及取代喹喔啉衍生物。这些化合物对预防和/或治疗包括过度增殖性疾病在内的多种医疗状况具有用处。
• Addressing the Configuration Stability of Lithiated Secondary Benzylic Carbamates for the Development of a Noncryogenic Stereospecific Boronate Rearrangement
  作者：Keith R. Fandrick、Nitinchandra D. Patel、Jason A. Mulder、Joe Gao、Michael Konrad、Elizabeth Archer、Frederic G. Buono、Adil Duran、Rolf Schmid、Juergen Daeubler、Daniel R. Fandrick、Shengli Ma、Nelu Grinberg、Heewon Lee、Carl A. Busacca、Jinhua J. Song、Nathan K. Yee、Chris H. Senanayake

  DOI：10.1021/ol502060c

  日期：2014.9.5

  A practical noncryogenic process for the Aggarwal stereospecific boronate rearrangement with chiral secondary benzylic carbamates has been developed. The use of LDA instead of sec-BuLi combined with an in situ trapping of the unstable lithiated carbamate was critical to success. Furthermore, this new process increased the substrate scope to include the versatile aryl iodide and bromide substrates.

  已经开发了一种实用的非低温方法，用于用手性仲苄基氨基甲酸酯进行Aggarwal立体有向硼酸酯的重排。使用LDA代替sec -BuLi结合原位捕获不稳定的锂化氨基甲酸酯对成功至关重要。此外，这种新工艺扩大了基材范围，使其包括通用的碘化芳基和溴化基材。该方法已应用于多种基质，并在多千克规模上得到了证明。
• Boron insertion into alkyl ether bonds via zinc/nickel tandem catalysis
  作者：Hairong Lyu、Ilia Kevlishvili、Xuan Yu、Peng Liu、Guangbin Dong

  DOI：10.1126/science.abg5526

  日期：2021.4.9

  (C−O) bond in alkyl ethers could simplify chemical syntheses through the elaboration of these robust, readily available precursors. Here we report that dibromoboranes react with alkyl ethers in the presence of a nickel catalyst and zinc reductant to insert boron into the C−O bond. Subsequent reactivity can effect oxygen-to-nitrogen substitution or one-carbon homologation of cyclic ethers and more broadly

  轻度的在烷基醚中裂解碳-氧（C-O）键的方法可通过精心设计这些稳固且易于获得的前体来简化化学合成。在这里，我们报道二溴硼烷在镍催化剂和锌还原剂的存在下与烷基醚反应，从而将硼插入到C-O键中。随后的反应性可以影响环醚的氧-氮取代或一碳同系化，并更广泛地简化了生物活性化合物的制备。机理研究揭示了通过锌/镍串联催化的裂解-然后反弹的途径。
• Trimethylphosphate as a Methylating Agent for Cross Coupling: A Slow-Release Mechanism for the Methylation of Arylboronic Esters
  作者：Zhi-Tao He、Haoquan Li、Alexander M. Haydl、Gregory T. Whiteker、John F. Hartwig

  DOI：10.1021/jacs.8b10076

  日期：2018.12.12

  A methyl group on an arene, despite its small size, can have a profound influence on biologically active molecules. Typical methods to form a methylarene involve strong nucleophiles or strong and often toxic electrophiles. We report a strategy for a new, highly efficient, copper and iodide co-catalyzed methylation of aryl- and heteroarylboronic esters with the mild, nontoxic reagent trimethylphosphate

  芳烃上的甲基，尽管其尺寸很小，但可以对生物活性分子产生深远的影响。形成甲基芳烃的典型方法涉及强亲核试剂或强且通常有毒的亲电试剂。我们报告了一种新的、高效的、铜和碘化物共催化芳基和杂芳基硼酸酯与温和、无毒试剂三甲基磷酸酯甲基化的策略，该试剂以前未用于偶联反应。我们表明，它在所有测试的情况下都以高于 MeOT 或 MeI 的类似铜催化反应的产率进行反应。CH 硼酸化和这种甲基化与磷酸三甲酯的结合为惰性 CH 键的功能化提供了一种新方法，并通过四种药用活性化合物的后期甲基化进行了说明。此外，200 mmol 规模的反应证明了该方法的可靠性。机理研究表明，该反应是通过 PO(OMe)3 与碘化物催化剂反应缓慢释放甲基碘，而不是典型的直接氧化加成到金属中心。低浓度的反应性亲电试剂能够与芳基铜中间体进行选择性反应，而不是芳基硼酸酯上的亲核基团，并且叔丁醇与硼酸酯的结合抑制了亲电试剂与叔丁醇活化剂反应形成甲基醚。