(-)-硝苯洛尔 | 5054-57-9

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 中文名称: (-)-硝苯洛尔
• 中文别名: (R)-(-)-硝苯洛尔
• 英文名称: (-)-Nifenalol
• 英文别名: (R)-(-)-nifenalol；(R)-nifenalol；(R)-2-isopropylamino-1-(4-nitro-phenyl)-ethanol；(1R)-1-(4-nitrophenyl)-2-(propan-2-ylamino)ethanol
• CAS: 5054-57-9；5302-35-2；5302-36-3；7413-36-7
• 化学式: C₁₁H₁₆N₂O₃
• 分子量: 224.26
• InChiKey: UAORFCGRZIGNCI-NSHDSACASA-N

物化性质

• 沸点：
  365.66°C (rough estimate)
• 密度：
  1.1672 (rough estimate)

计算性质

• 辛醇/水分配系数(LogP)：
  1.1
• 重原子数：
  16
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.45
• 拓扑面积：
  78.1
• 氢给体数：
  2
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  聚合甲醛 、 (-)-硝苯洛尔 以 乙醇 为溶剂， 反应 12.0h， 生成 (R)-3-isopropyl-5-(4-nitro-phenyl)-oxazolidine
  参考文献：
  名称：

  Almirante; Murmann, Farmaco, Edizione Scientifica, 1969, vol. 24, # 8, p. 744 - 747

  摘要：

  DOI：
• 作为产物：
  描述：

  (P-硝基苯基)环氧乙烷 在 VrEH_2M263N 、 氢溴酸 作用下， 以 aq. phosphate buffer 、 乙醇 、 二甲基亚砜 为溶剂， 反应 25.0h， 生成 (-)-硝苯洛尔
  参考文献：
  名称：

  Preparing β-blocker (R)-Nifenalol based on enantioconvergent synthesis of (R)-p-nitrophenylglycols in continuous packed bed reactor with epoxide hydrolase

  摘要：

  An engineered epoxide hydrolase from Vigna radiate (VrEH2(M263N)) shows near-perfect enantioconvergence in single enzyme mediated hydrolysis of racemic p-nitrostyrene oxide (pNSO). To explore industrial potential of the promising biocatalyst, we tried to immobilize the VrEH2 variant by covalently linking onto a commercially available amino resin ECR8405F. Then a 5-mL packed bed reactor filled with the immobilized VrEH2(M263N) was connected with macroporous resin NKA-11 for in situ product adsorption, and the product (R)-p-nitrophenyl glycol (pNPG) was harvested by methanol elution, with 91% isolated yield and 97% ee. The continuous reactor was operated stably for more than 100 h with a space time yield of 20 g.L-1.h(-1). Subsequently, the beta-blocker (R)-Nifenalol was prepared by chemically synthesized from (R)-pNPG, affording the product in an overall yield of 61.3% (1.5 g) and an enantiopurity of 99.9% ee after recrystallization. (C) 2019 Published by Elsevier Ltd.

  DOI：

  10.1016/j.tet.2019.01.034

文献信息

• Copper bis(oxazolines) as catalysts for stereoselective aziridination of styrenes with N-tosyloxycarbamates
  作者：Hélène Lebel、Michaël Parmentier、Olivier Leogane、Karen Ross、Cédric Spitz

  DOI：10.1016/j.tet.2012.02.044

  日期：2012.4

  styrenes. Subsequent ring-opening reactions of styrene-derived aziridines at the benzylic position were observed with various oxygen and nitrogen nucleophiles under Lewis acid catalysis affording the corresponding products with complete inversion of stereochemistry. The strategy was used to synthesize the β-blocker, (R)-nifenalol.

  已经开发了Cu（I）催化的与手性N-甲苯磺酰氧基氨基甲酸酯的苯乙烯的不对称叠氮化。观察到双立体分化，并且N-甲苯磺酰氧基氨基甲酸酯取代基和双（恶唑啉）配体均对产率和非对映选择性具有显着影响。使用缺电子的苯乙烯可获得最佳的叠氮化效果。在路易斯酸催化下，用各种氧和氮亲核试剂观察到了苯乙烯衍生的氮丙啶在苄基位置的随后开环反应，从而提供了具有完全立体化学转化的相应产物。该策略用于合成β-受体阻滞剂（R）-尼芬洛尔。
• Effect of Basic and Acidic Additives on the Separation of Some Basic Drug Enantiomers on Polysaccharide-Based Chiral Columns With Acetonitrile as Mobile Phase
  作者：Khatuna Gogaladze、Lali Chankvetadze、Maia Tsintsadze、Tivadar Farkas、Bezhan Chankvetadze

  DOI：10.1002/chir.22417

  日期：2015.12

  The separation of enantiomers of 16 basic drugs was studied using polysaccharide‐based chiral selectors and acetonitrile as mobile phase with emphasis on the role of basic and acidic additives on the separation and elution order of enantiomers. Out of the studied chiral selectors, amylose phenylcarbamate‐based ones more often showed a chiral recognition ability compared to cellulose phenylcarbamate

  使用基于多糖的手性选择剂和乙腈作为流动相，研究了16种基本药物的对映异构体的分离，重点研究了碱性和酸性添加剂对对映异构体的分离和洗脱顺序的作用。在研究的手性选择剂中，与纤维素苯基氨基甲酸酯衍生物相比，基于直链苯基氨基甲酸酯的选择剂更经常显示出手性识别能力。观察到甲酸作为添加剂对某些基本药物的对映体拆分和对映体洗脱顺序的有趣影响。因此，例如，几种β-阻滞剂（阿替洛尔，索他洛尔，甲苯酚）的对映异构体分离不仅可以通过在流动相中添加更常规的碱性添加剂来实现，而且可以通过添加酸性添加剂来实现。而且，手性27：228–234，2015年。©2015 Wiley Periodicals，Inc.
• One-pot route to β-adrenergic blockers via enantioselective organocatalysed epoxidation of terminal alkenes as a key step
  作者：Felix E. Held、Shengwei Wei、Kathrin Eder、Svetlana B. Tsogoeva

  DOI：10.1039/c4ra04011b

  日期：——

  A convenient and environmentally attractive one-pot two-step process for the synthesis of β-adrenergic blockers via Shi's organocatalytic epoxidation of terminal alkenes and subsequent aminolysis reaction of epoxides with isopropylamine under mild reaction conditions has been developed.

  开发了一种方便且环境友好的两步一锅法合成β-肾上腺素阻断剂的过程，该过程通过Shi的末端烯烃有机催化环氧化反应，随后在温和反应条件下利用异丙胺进行环氧化物的氨基解反应实现。
• Asymmetric Synthesis of β-Adrenergic Blockers through Multistep One-Pot Transformations Involving In Situ Chiral Organocatalyst Formation
  作者：Shengwei Wei、Regina Messerer、Svetlana B. Tsogoeva

  DOI：10.1002/chem.201102931

  日期：2011.12.16

  Two birds one stone: A new atom‐economical one‐pot approach to enantioselective chiral drug synthesis, involving in situ multistep organocatalyst formation and the application of the reaction for multistep sequential synthesis of β‐adrenergic blockers is disclosed (see scheme).

  两只鸟一块石头：公开了一种用于对映选择性手性药物合成的新的原子经济单罐方法，该方法涉及原位多步有机催化剂的形成以及该反应在β-肾上腺素能阻滞剂多步序贯合成中的应用（参见方案）。
• Integration of multiple active sites on large-pore mesoporous silica for enantioselective tandem reactions
  作者：Xuelin Xia、Jingjing Meng、Hanxin Wu、Tanyu Cheng、Guohua Liu

  DOI：10.1039/c6cc09008g

  日期：——

  Facile construction of a multifunctional heterogeneous catalyst through assembly of Au/carbene and chiral ruthenium/diamine dual complexes in a large-pore mesoporous silica is developed. It enables an efficient one-pot hydration-asymmetric transfer...

  通过在大孔介孔二氧化硅中组装金/卡宾和手性钌/二胺双配合物，可轻松构建多功能非均相催化剂。它实现了高效的一锅水化不对称转移。