Potassium Carbonate → 4-methyl-3-[2-methyl-4-(6-methyl-pyridin-2-ylmethoxy)-6-oxo-6H-pyrimidin-1-yl]-benzoic acid methyl ester

HRID 2172620Notes

Reaction equation

HRID 2172620 reaction equation
[CH3:1][O:2][C:3](=[O:20])[C:4]1[CH:9]=[CH:8][C:7]([CH3:10])=[C:6]([N:11]2[C:16](=[O:17])[CH:15]=[C:14]([OH:18])[N:13]=[C:12]2[CH3:19])[CH:5]=1.Br[CH2:22][C:23]1[CH:28]=[CH:27][CH:26]=[C:25]([CH3:29])[N:24]=1.C(=O)([O-])[O-].[K+].[K+].C1OCCOCCOCCOCCOCCOC1>CN(C)C=O>[CH3:1][O:2][C:3](=[O:20])[C:4]1[CH:9]=[CH:8][C:7]([CH3:10])=[C:6]([N:11]2[C:16](=[O:17])[CH:15]=[C:14]([O:18][CH2:22][C:23]3[CH:28]=[CH:27][CH:26]=[C:25]([CH3:29])[N:24]=3)[N:13]=[C:12]2[CH3:19])[CH:5]=1

Participants

6

Reactant 4

HCID 11430Potassium CarbonateHCID 2855718-Crown-6HCID 125437332-(Bromomethyl)-6-methylpyridineHCID 1363878053-(4-hydroxy-2-methyl-6-oxo-6H-pyrimidin-1-yl)-4-methyl-benzoic acid methyl ester

Product 1

HCID 866862974-methyl-3-[2-methyl-4-(6-methyl-pyridin-2-ylmethoxy)-6-oxo-6H-pyrimidin-1-yl]-benzoic acid methyl esterYield 16%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

To a solution of Intermediate 2 (460 mg, 1.68 mmol) in N,N-dimethylformamide (2 mL) was added 2-(bromomethyl)-6-methylpyridine (312 mg, 1.68 mmol), potassium carbonate (350 mg, 2.53 mmol) and 18-crown-6 (40 mg). The slurry was stirred at ambient temperature for one hour. The reaction was partitioned between ethyl acetate and water. The organic layer was washed with water and brine and dried over magnesium sulfate. The slurry was filtered and concentrated in vacuo. The crude material was purified using normal phase chromatography (ethyl acetate/heptane) to provide the alkylated product as a white semi-solid (100 mg, 16% yield). MS (M+H): 380

Workup

  1. customThe reaction was partitioned between ethyl acetate and water
  2. washThe organic layer was washed with water and brine
  3. dry with materialdried over magnesium sulfate
  4. filtrationThe slurry was filtered
  5. concentrationconcentrated in vacuo
  6. customThe crude material was purified

Sources & evidence

ORD record
ord-36a0e04890c74c909af661a0748c7213
Source dataset
uspto-grants-2015_06
Patent number
US09056110B2

Reaction notes

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