Ethyl Acetate → 4-(1-(5-Hydroxymethylfur-2-ylmethyl)-1H-benzimidazol-2-yl)[1,4]diazepane

HRID 2230549Notes

Reaction equation

HRID 2230549 reaction equation
C(OC([N:6]1[CH2:12][CH2:11][CH2:10][N:9]([C:13]2[N:17]([CH2:18][C:19]3[O:20][C:21]([CH2:24][OH:25])=[CH:22][CH:23]=3)[C:16]3[CH:26]=[CH:27][CH:28]=[CH:29][C:15]=3[N:14]=2)[CH2:8][CH2:7]1)=O)C.[OH-].[Na+].C(OCC)(=O)C>C(O)(C)C>[OH:25][CH2:24][C:21]1[O:20][C:19]([CH2:18][N:17]2[C:16]3[CH:26]=[CH:27][CH:28]=[CH:29][C:15]=3[N:14]=[C:13]2[N:9]2[CH2:10][CH2:11][CH2:12][NH:6][CH2:7][CH2:8]2)=[CH:23][CH:22]=1

Participants

5

Reactant 3

HCID 8857Ethyl AcetateHCID 14798Sodium HydroxideHCID 184645131-ethoxycarbonyl-4-(1-(5-hydroxymethylfur-2-ylmethyl)-1H-benzimidazol-2-yl)[1,4]diazepane

Product 1

HCID 184649364-(1-(5-Hydroxymethylfur-2-ylmethyl)-1H-benzimidazol-2-yl)[1,4]diazepane

Reagents, catalysts & solvents 1

HCID 3776IsopropanolSolvent

Procedure

Combine 1-ethoxycarbonyl-4-(1-(5-hydroxymethylfur-2-ylmethyl)-1H-benzimidazol-2-yl)[1,4]diazepane (4 mmol) and sodium hydroxide (8 mmol) in isopropanol (20 mL). Heat to reflux. After 2 days, evaporate the reaction mixture in vacuo to give a residue. Combine the residue and ethyl acetate. Extract with water and brine. Dry the organic layer over Na2SO4, filter, and evaporate in vacuo to give the title compound.

Workup

  1. temperatureHeat to reflux
  2. customevaporate the reaction mixture in vacuo
  3. customto give a residue
  4. extractionExtract with water and brine
  5. dry with materialDry the organic layer over Na2SO4
  6. filtrationfilter
  7. customevaporate in vacuo

Sources & evidence

ORD record
ord-79e9a6e36740412485818e576794dbd9
Source dataset
uspto-grants-2002_07
Patent number
US06423704B1

Reaction notes

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