Sodium Bicarbonate → N-(2-Methoxypyridin-4-yl)-5-(5,6-dimethoxy-3-methyl-1,4-benzoquinon-2-yl)methyl-2-hydroxybenzamide

HRID 1830440Notes

Reaction equation

HRID 1830440 reaction equation
[CH3:1][O:2][C:3]1[CH:8]=[C:7]([NH:9][C:10](=[O:35])[C:11]2[CH:16]=[C:15]([CH2:17][C:18]3[C:19](=[O:30])[C:20]([O:28][CH3:29])=[C:21]([O:26][CH3:27])[C:22](=[O:25])[C:23]=3[CH3:24])[CH:14]=[CH:13][C:12]=2[O:31]C(=O)C)[CH:6]=[CH:5][N:4]=1.C(=O)([O-])O.[Na+]>CO.O>[CH3:1][O:2][C:3]1[CH:8]=[C:7]([NH:9][C:10](=[O:35])[C:11]2[CH:16]=[C:15]([CH2:17][C:18]3[C:19](=[O:30])[C:20]([O:28][CH3:29])=[C:21]([O:26][CH3:27])[C:22](=[O:25])[C:23]=3[CH3:24])[CH:14]=[CH:13][C:12]=2[OH:31])[CH:6]=[CH:5][N:4]=1

Participants

5

Reactant 2

HCID 516892Sodium BicarbonateHCID 22054298HCID 22054298, compound

Product 1

HCID 22054211N-(2-Methoxypyridin-4-yl)-5-(5,6-dimethoxy-3-methyl-1,4-benzoquinon-2-yl)methyl-2-hydroxybenzamideYield 55%

Reagents, catalysts & solvents 2

HCID 887MethanolSolventHCID 962WaterSolvent

Procedure

N-(2-Methoxypyridin-4-yl)-5-(5,6-dimethoxy-3-methyl-1,4-benzoquinon-2-yl)methyl-2-acetoxybenzamide (0.100 g, 0.208 mmol) was dissolved in methanol (3 ml) and after adding thereto an aqueous saturated sodium hydrogencarbonate solution (3 ml), the solution was stirred at room temperature for 3 hours. After the completion of reaction, the reaction solution was diluted with water and then extracted with ethyl acetate. The extract was washed with water and then dried, and the solvent was removed by distillation. The obtained residue was purified by preparative thin-layer chromatography (chloroform:methanol=10:1) and then recrystallized from ether to obtain the titled compound (0.050 g, 0.114 mmol, 55%).

Workup

  1. additionafter adding
  2. customAfter the completion of reaction
  3. extractionextracted with ethyl acetate
  4. washThe extract was washed with water
  5. customdried
  6. customthe solvent was removed by distillation
  7. customThe obtained residue was purified by preparative thin-layer chromatography (chloroform:methanol=10:1)
  8. customrecrystallized from ether

Sources & evidence

ORD record
ord-56c205ea605a4a2d9c3a133a7f8e4367
Source dataset
uspto-grants-2006_06
Patent number
US07064124B2

Reaction notes

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