Water → 3-{2-Amino-4-fluoro-5-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidin-1-yl]phenoxy}-4-benzyloxypyridine

HRID 1862276Notes

Reaction equation

HRID 1862276 reaction equation
O.[CH2:2]([O:9][C:10]1[CH:15]=[CH:14][N:13]=[CH:12][C:11]=1[O:16][C:17]1[CH:22]=[C:21]([N:23]2[C:28](=[O:29])[CH:27]=[C:26]([C:30]([F:33])([F:32])[F:31])[N:25]([CH3:34])[C:24]2=[O:35])[C:20]([F:36])=[CH:19][C:18]=1[N+:37]([O-])=O)[C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][CH:4]=1>C(O)(=O)C.C(OCC)(=O)C.[Fe]>[NH2:37][C:18]1[CH:19]=[C:20]([F:36])[C:21]([N:23]2[C:28](=[O:29])[CH:27]=[C:26]([C:30]([F:31])([F:33])[F:32])[N:25]([CH3:34])[C:24]2=[O:35])=[CH:22][C:17]=1[O:16][C:11]1[CH:12]=[N:13][CH:14]=[CH:15][C:10]=1[O:9][CH2:2][C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][CH:4]=1

Participants

6

Reactant 2

HCID 962Water2×HCID 186192594-Benzyloxy-3-{4-fluoro-5-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidin-1-yl]-2-nitrophenoxy}pyridine

Product 1

HCID 186191803-{2-Amino-4-fluoro-5-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidin-1-yl]phenoxy}-4-benzyloxypyridineYield 84.7%

Reagents, catalysts & solvents 3

HCID 23925IronCatalystHCID 176Acetic AcidSolvent2×HCID 8857Ethyl AcetateSolvent

Conditions

Temperature
45 °C

Procedure

To a mixture of 0.55 g of an iron powder, 3 ml of acetic acid and 0.3 ml of water was added a solution of 0.548 g of 4-benzyloxy-3-{4-fluoro-5-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidin-1-yl]-2-nitrophenoxy}pyridine in 0.5 ml of acetic acid and 3 ml of ethyl acetate dropwise. After completion of the addition, the mixture was stirred for 3 hour at 40-50° C. The mixture was poured into water, then, the mixture was filtrated through Celite, and extracted with ethyl acetate. The organic layer was washed with saturated aqueous sodium bicarbonate solution, and saturated saline, dried over anhydrous magnesium sulfate, and concentrated to obtain 0.438 g of 3-{2-amino-4-fluoro-5-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidin-1-yl]phenoxy}-4-benzyloxypyridine.

Workup

  1. additionAfter completion of the addition
  2. filtrationthe mixture was filtrated through Celite
  3. extractionextracted with ethyl acetate
  4. washThe organic layer was washed with saturated aqueous sodium bicarbonate solution, and saturated saline
  5. dry with materialdried over anhydrous magnesium sulfate
  6. concentrationconcentrated

Sources & evidence

ORD record
ord-49e8535922d0428ca2081cbf877c53e0
Source dataset
uspto-grants-2003_03
Patent number
US06537948B1

Reaction notes

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