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

HRID 1862269Notes

Reaction equation

HRID 1862269 reaction equation
O.[F:2][C:3]1[C:21]([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:20][C:6]([O:7][C:8]2[C:9]([O:14][CH2:15][C:16]([O:18][CH3:19])=[O:17])=[N:10][CH:11]=[N:12][CH:13]=2)=[C:5]([N+:35]([O-])=O)[CH:4]=1>C(O)(=O)C.C(OCC)(=O)C.[Fe]>[NH2:35][C:5]1[CH:4]=[C:3]([F:2])[C:21]([N:22]2[C:27](=[O:28])[CH:26]=[C:25]([C:29]([F:30])([F:32])[F:31])[N:24]([CH3:33])[C:23]2=[O:34])=[CH:20][C:6]=1[O:7][C:8]1[C:9]([O:14][CH2:15][C:16]([O:18][CH3:19])=[O:17])=[N:10][CH:11]=[N:12][CH:13]=1

Participants

6

Reactant 2

HCID 962Water2×HCID 186192355-{4-Fluoro-5-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidin-1-yl]-2-nitrophenoxy}-4-(methoxycarbonyl)methoxypyrimidine

Product 1

HCID 186191775-{2-Amino-4-fluoro-5-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidin-1-yl]phenoxy}-4-(methoxycarbonyl)methoxypyrimidineYield 85.1%

Reagents, catalysts & solvents 3

HCID 23925IronCatalystHCID 176Acetic AcidSolvent2×HCID 8857Ethyl AcetateSolvent

Conditions

Temperature
35 °C

Procedure

To a mixture of 0.4 g of an iron powder, 2 ml of acetic acid and 0.2 ml of water was added a solution of 0.393 g of 5-{4-fluoro-5-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidin-1-yl]-2-nitrophenoxy}-4-(methoxycarbonyl)methoxypyrimidine in 1 ml of acetic acid and 2 ml of ethyl acetate dropwise. After completion of the addition, the mixture was stirred for 1 hour at room temperature, for 2 hours at 30-40° C. Water was added to the mixture, 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. Then, the resulted residue was subjected to silica gel chromatography to obtain 0.315 g of 5-{2-amino-4-fluoro-5-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidin-1-yl]phenoxy}-4-(methoxycarbonyl)methoxypyrimidine.

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-010f442ded42420d9a7d5d1b5d0af09b
Source dataset
uspto-grants-2003_03
Patent number
US06537948B1

Reaction notes

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