Potassium Carbonate → 3-{4-Fluoro-5-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidin-1-yl]-2-nitrophenoxy}-2-{1-(methoxycarbonyl)-ethoxy}pyridine

HRID 1862264Notes

Reaction equation

HRID 1862264 reaction equation
[OH:1][C:2]1[C:3]([O:8][CH:9]([C:11]([O:13][CH3:14])=[O:12])[CH3:10])=[N:4][CH:5]=[CH:6][CH:7]=1.F[C:16]1[CH:21]=[C:20]([N:22]2[C:27](=[O:28])[CH:26]=[C:25]([C:29]([F:32])([F:31])[F:30])[N:24]([CH3:33])[C:23]2=[O:34])[C:19]([F:35])=[CH:18][C:17]=1[N+:36]([O-:38])=[O:37].C(=O)([O-])[O-].[K+].[K+]>CN(C)C=O>[F:35][C:19]1[C:20]([N:22]2[C:27](=[O:28])[CH:26]=[C:25]([C:29]([F:32])([F:31])[F:30])[N:24]([CH3:33])[C:23]2=[O:34])=[CH:21][C:16]([O:1][C:2]2[C:3]([O:8][CH:9]([C:11]([O:13][CH3:14])=[O:12])[CH3:10])=[N:4][CH:5]=[CH:6][CH:7]=2)=[C:17]([N+:36]([O-:38])=[O:37])[CH:18]=1

Participants

5

Reactant 3

HCID 11430Potassium CarbonateHCID 121155092,5-Difluoro-4-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidin-1-yl]nitrobenzeneHCID 219335243-Hydroxy-2-{1-(methoxycarbonyl)ethoxy}pyridine

Product 1

HCID 219335633-{4-Fluoro-5-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidin-1-yl]-2-nitrophenoxy}-2-{1-(methoxycarbonyl)-ethoxy}pyridineYield 73.5%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Conditions

Temperature
70 °C

Procedure

To a mixture of 0.18 g of 3-hydroxy-2-{1-(methoxycarbonyl)ethoxy}pyridine, 0.19 g of 2,5-difluoro-4-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidin-1-yl]nitrobenzene and 2.0 ml of N,N-dimethylformamide was added 91 mg of potassium carbonate, and the mixture was stirred for 3 hours at 70° C. The reaction solution was cooled to room temperature, then, poured into ice water, and extracted with ethyl acetate. The organic layer was washed with saturated saline, dried over anhydrous magnesium sulfate, and concentrated. The residue was subjected to silica gel column chromatography to obtain 0.21 g of 3-{4-fluoro-5-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidin-1-yl]-2-nitrophenoxy}-2-{1-(methoxycarbonyl)ethoxy}pyridine [present compound 9-42] (as a mixture of two diastereomerical isomers).

Workup

  1. temperatureThe reaction solution was cooled to room temperature
  2. extractionextracted with ethyl acetate
  3. washThe organic layer was washed with saturated saline
  4. dry with materialdried over anhydrous magnesium sulfate
  5. concentrationconcentrated

Sources & evidence

ORD record
ord-a5dca2c012a54792b24096bed082d90b
Source dataset
uspto-grants-2003_03
Patent number
US06537948B1

Reaction notes

Loading…