Tetrahydrofuran → HCID 68491598, compound

HRID 1443715Notes

Reaction equation

HRID 1443715 reaction equation
C[O:2][C:3](=[O:20])[CH2:4][CH2:5][CH2:6][CH2:7][C:8]1[O:9][CH:10]=[C:11]([C:13]2[CH:18]=[CH:17][CH:16]=[CH:15][C:14]=2[NH2:19])[N:12]=1.C1COCC1.[OH-].[Na+]>CCO>[NH2:19][C:14]1[CH:15]=[CH:16][CH:17]=[CH:18][C:13]=1[C:11]1[N:12]=[C:8]([CH2:7][CH2:6][CH2:5][CH2:4][C:3]([OH:20])=[O:2])[O:9][CH:10]=1

Participants

5

Reactant 3

HCID 8028TetrahydrofuranHCID 14798Sodium HydroxideHCID 59167769HCID 59167769, compound

Product 1

HCID 68491598HCID 68491598, compound

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Procedure

Combine 5-[4-(2-amino-phenyl)-oxazol-2-yl]-pentanoic acid methyl ester (2.5 g, 9.1 mmol) with THF (3 mL), EtOH (3 mL) and 1N NaOH (15 mL) and stir until hydrolysis is complete. Concentrate the mixture, dilute the residue with water and adjust the pH to 2.5-3.5 with aq HCl. Extract the mixture with EtOAc and dry the extracts over Na2SO4 before concentrating. Chromatograph the residue over silica gel (EtOAc) to allow for recovery of 5-[4-(2-amino-phenyl)-oxazol-2-yl]-pentanoic acid (2.03 g, 86%). MS (ES): (M+1)+ 261.1 m/z.

Workup

  1. concentrationConcentrate the mixture
  2. additiondilute the residue with water
  3. extractionExtract the mixture with EtOAc
  4. dry with materialdry the extracts over Na2SO4
  5. concentrationbefore concentrating

Sources & evidence

ORD record
ord-1a753834f08f44b2aea2a037a112bd78
Source dataset
uspto-grants-2010_02
Patent number
US07662771B2

Reaction notes

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