Sodium Methoxide → N-(3-(4-(4-chlorobenzyl)-6-methoxy-3,5-dioxo-4,5-dihydro-1,2,4-triazin-2(3H)-yl)phenyl)acetamide

HRID 1624879Notes

Reaction equation

HRID 1624879 reaction equation
[Cl:1][C:2]1[CH:27]=[CH:26][C:5]([CH2:6][N:7]2[C:12](=[O:13])[C:11](Br)=[N:10][N:9]([C:15]3[CH:16]=[C:17]([NH:21][C:22](=[O:24])[CH3:23])[CH:18]=[CH:19][CH:20]=3)[C:8]2=[O:25])=[CH:4][CH:3]=1.[CH3:28][O-:29].[Na+]>CO>[Cl:1][C:2]1[CH:27]=[CH:26][C:5]([CH2:6][N:7]2[C:12](=[O:13])[C:11]([O:29][CH3:28])=[N:10][N:9]([C:15]3[CH:16]=[C:17]([NH:21][C:22](=[O:24])[CH3:23])[CH:18]=[CH:19][CH:20]=3)[C:8]2=[O:25])=[CH:4][CH:3]=1

Participants

4

Reactant 2

HCID 10942334Sodium MethoxideHCID 68702221N-(3-(4-(4-chlorobenzyl)-6-bromo-3,5-dioxo-4,5-dihydro-1,2,4-triazin-2(3H)-yl)phenyl)acetamide

Product 1

HCID 59139822N-(3-(4-(4-chlorobenzyl)-6-methoxy-3,5-dioxo-4,5-dihydro-1,2,4-triazin-2(3H)-yl)phenyl)acetamideYield 35%

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent2×

Procedure

According to Scheme 2 Step 4: To a cooled solution of N-(3-(4-(4-chlorobenzyl)-6-bromo-3,5-dioxo-4,5-dihydro-1,2,4-triazin-2(3H)-yl)phenyl)acetamide 2(C) (80 mg, 0.18 mmol) in 0.5 mL of methanol (0.5 mL) at 0° C., was added a solution of sodium methoxide (2M) in Methanol (85 μL 0.18 mmol). After 1 h at 0° C. the reaction mixture was allowed to reach room temperature. After 1 h the reaction mixture was quenched with water and extracted with ethyl acetate (×3). The combined organic layers were washed successively with water, with brine, dried over MgSO4, filtered and concentrated. The crude product was purified by flash chromatography, 5 g column, (Eluant: DCM/AcOEt/MeOH 80/18/2). 25 mg (35% yield) of N-(3-(4-(4-chlorobenzyl)-6-methoxy-3,5-dioxo-4,5-dihydro-1,2,4-triazin-2(3H)-yl)phenyl)acetamide were recovered.

Workup

  1. customto reach room temperature
  2. customAfter 1 h the reaction mixture was quenched with water
  3. extractionextracted with ethyl acetate (×3)
  4. washThe combined organic layers were washed successively with water, with brine
  5. dry with materialdried over MgSO4
  6. filtrationfiltered
  7. concentrationconcentrated
  8. customThe crude product was purified by flash chromatography, 5 g column, (Eluant: DCM/AcOEt/MeOH 80/18/2)

Sources & evidence

ORD record
ord-fc0ada27827142c499ff0c2fc6c37454
Source dataset
uspto-grants-2014_07
Patent number
US08779129B2

Reaction notes

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