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

HRID 1862265Notes

Reaction equation

HRID 1862265 reaction equation
O.[F:2][C:3]1[C:22]([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])=[CH:21][C:6]([O:7][C:8]2[C:9]([O:14][CH:15]([C:17]([O:19][CH3:20])=[O:18])[CH3:16])=[N:10][CH:11]=[CH:12][CH:13]=2)=[C:5]([N+:36]([O-])=O)[CH:4]=1>C(O)(=O)C.[Fe]>[NH2:36][C:5]1[CH:4]=[C:3]([F:2])[C:22]([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:21][C:6]=1[O:7][C:8]1[C:9]([O:14][CH:15]([C:17]([O:19][CH3:20])=[O:18])[CH3:16])=[N:10][CH:11]=[CH:12][CH:13]=1

Participants

5

Reactant 2

HCID 962WaterHCID 219335633-{4-Fluoro-5-[3-methyl-2,6-dioxo-4-(trifluoromethyl)-1,2,3,6-tetrahydropyrimidin-1-yl]-2-nitrophenoxy}-2-{1-(methoxycarbonyl)-ethoxy}pyridine2×

Product 1

HCID 121155033-{2-Amino-4-fluoro-5-[3-methyl-2,6-dioxo-4-(trifluoromethyl)1,2,3,6-tetrahydropyrimidin-1-yl]phenoxy}-2-{1-(methoxycarbonyl)ethoxy}pyridine

Reagents, catalysts & solvents 2

HCID 23925IronCatalystHCID 176Acetic AcidSolvent2×

Conditions

Temperature
35 °C

Procedure

To a mixture of 0.21 g of an iron powder, 3 ml of acetic acid and 0.3 ml of water was added a solution 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] in 1.2 ml of acetic acid dropwise while maintaining the temperature of the reaction solution at 35° C. or lower. After completion of the addition, the mixture was stirred for 1 hour, then, the reaction solution was filtrated through Celite, and diluted with ethyl acetate. The mixture was neutralized with saturated aqueous sodium bicarbonate solution, the organic layer was washed with saturated saline, dried over anhydrous magnesium sulfate, and concentrated, then, the resulted residue was subjected to silica gel chromatography to obtain 0.16 g of 3-{2-amino-4-fluoro-5-[3-methyl-2,6-dioxo-4-(trifluoromethyl)1,2,3,6-tetrahydropyrimidin-1-yl]phenoxy}-2-{1-(methoxycarbonyl)ethoxy}pyridine (as a mixture of two diastereomerical isomers).

Workup

  1. additionAfter completion of the addition
  2. filtrationthe reaction solution was filtrated through Celite
  3. additiondiluted with ethyl acetate
  4. washthe organic layer was washed with saturated saline
  5. dry with materialdried over anhydrous magnesium sulfate
  6. concentrationconcentrated

Sources & evidence

ORD record
ord-d0e7a0f8c2854452bb7af7a7acfc706a
Source dataset
uspto-grants-2003_03
Patent number
US06537948B1

Reaction notes

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