| Identification | Back Directory |  [Name]
  N-(4-CYANO-PHENYL)-GLYCINE |  [CAS]
  42288-26-6 |  [Synonyms]
  4-Cyano phenyl Glycine N-(4-Cynophenyl)-Glycine N-(p-Cyanophenyl)glycine Dabigatran Intermediate 2 N-(4-CYANO-PHENYL)-GLYCIN N-(4-CYANO-PHENYL)-GLYCINE Glycine, N-(4-cyanophenyl)- N-(4-Cyanophenyl)glycine > N-(4-Cyanophenyl)glycine(DG10) N-(4-Cyanophenyl)glycine Dabigatran Impurity 2 (DABRC-02) [(4-Cyanophenyl)aMino]acetic Acid Dabigatran Etexilate Intermediate 2 Dabigatran pharMaceutical interMediate 4-(((Carboxy)Methyl)aMino)benzonitrile N-(4-Cyanophenyl)glycine CAS:42288-26-6 Pradaxa mesylate intermediates,N-(4-cyanophenyl)-Glycine |  [EINECS(EC#)]
  459-560-3 |  [Molecular Formula]
  C9H8N2O2 |  [MDL Number]
  MFCD01464022 |  [MOL File]
  42288-26-6.mol |  [Molecular Weight]
  176.172 |  
 | Questions And Answer | Back Directory |  [Description]
  Dabigatran etexilate is a novel synthetic direct thrombin inhibitor, a prodrug of dabigatran, a non-peptide thrombin inhibitor. Dabigatran etexilate intermediate II is an impurity produced during the preparation of dabigatran etexilate. |  [Physical properties]
  N-(4-Cyanophenyl)glycine is a off-white Solid. |  
 | Chemical Properties | Back Directory |  [Melting point ]
  237 °C(dec.) |  [Boiling point ]
  447.2±30.0 °C(Predicted) |  [density ]
  1.30±0.1 g/cm3(Predicted) |  [storage temp. ]
  Keep in dark place,Inert atmosphere,Room temperature |  [solubility ]
  Dichloromethane (Slightly), DMSO (Slightly), Methanol (Slightly) |  [form ]
  Solid |  [pka]
  3.81±0.10(Predicted) |  [color ]
  White to Pale Yellow |  [InChI]
  InChI=1S/C9H8N2O2/c10-5-7-1-3-8(4-2-7)11-6-9(12)13/h1-4,11H,6H2,(H,12,13) |  [InChIKey]
  KJRQMXRCZULRHF-UHFFFAOYSA-N |  [SMILES]
  C(O)(=O)CNC1=CC=C(C#N)C=C1 |  
 | Hazard Information | Back Directory |  [Chemical Properties]
  Off-white Solid |  [Uses]
  Dabigatran etexilate intermediate |  [Synthesis]
 
 3.2.3 Preparation of [(4-cyanophenyl)amino]acetic acid (V). Molecular formula: C9H8N2O2. molecular weight: 176.17. Raw materials: 90g (0.75mol) of bromoacetic acid (F), 211.7g (1.5mol) of p-aminobenzonitrile (G), 35g (0.42mol) of sodium bicarbonate. Procedure: bromoacetic acid (F) and p-aminobenzonitrile (G) were mixed in 1250 ml of water to form a suspension. The suspension was placed in a bath heated to 100-110°C for 3 hours. Upon completion of the reaction, the reaction vessel was removed from the bath and cooled to room temperature, followed by further cooling in a refrigerator. The precipitate was separated by diafiltration and dried in a vacuum desiccator at 100 °C. Yield of crude product: 122 g (92.8% yield), HPLC purity: 97%. Purification step: the crude product was converted to sodium salt and re-acidified using aqueous sodium bicarbonate to release the free acid by dilute hydrochloric acid (1:1). After filtration, the product was washed with water and dried in a vacuum desiccator at 105°C. The product was then purified to a sodium salt using aqueous sodium bicarbonate. Yield of purified product: 115 g (88% yield), HPLC purity: 99.1%, water content: 0.13%, sulfated ash: 1.8%.  |  [References]
  [1] Patent: WO2009/111997,  2009,  A1. Location in patent: Page/Page column 11 [2] Patent: WO2013/111163,  2013,  A2. Location in patent: Page/Page column 18 [3] Patent: US2015/11589,  2015,  A1. Location in patent: Paragraph 0121-0122 [4] European Journal of Medicinal Chemistry,  2016,  vol. 120,  p. 148 - 159 |  
  
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