HCID 86637515, compound → HCID 86637514, compound

HRID 1676810Notes

Reaction equation

HRID 1676810 reaction equation
C([O:3][C:4](=O)[C:5]([F:28])([F:27])[CH2:6][N:7]([C:17]1[C:22]([N+:23]([O-])=O)=[CH:21][N:20]=[C:19]([Cl:26])[N:18]=1)[CH2:8][CH2:9][CH2:10][C:11]1[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=1)C>C(O)(=O)C.[Fe]>[Cl:26][C:19]1[N:20]=[CH:21][C:22]2[NH:23][C:4](=[O:3])[C:5]([F:28])([F:27])[CH2:6][N:7]([CH2:8][CH2:9][CH2:10][C:11]3[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=3)[C:17]=2[N:18]=1

Participants

4

Reactant 1

HCID 86637515HCID 86637515, compound

Product 1

HCID 86637514HCID 86637514, compoundYield 81.3%

Reagents, catalysts & solvents 2

HCID 23925IronCatalystHCID 176Acetic AcidSolvent

Procedure

To a solution of 1.61 g (0.0038 mole) of 3-[(2-chloro-5-nitro-pyrimidin-4-yl)-(3-phenyl-propyl)-amino]-2,2-difluoro-propionic acid ethyl ester (IV-281) in 25 mL of acetic acid was added 1.6 g (0.029 g-atom) of iron powder. The mixture was heated to 80 degrees for 2 hours and then filtered while hot. Water and ethyl acetate were added to the filtrate and the mixture was stirred for 10 minutes and then filtered. The layers were separated. The organic layer was washed successively with ammonium hydroxide and water, dried over anhydrous magnesium sulfate, filtered and concentrated under reduced pressure to give 1.09 g of 2-chloro-7,7-difluoro-9-(3-phenyl-propyl)-5,7,8,9-tetrahydro-pyrimido[4,5-b][1,4]diazepin-6-one (VI-281) as a yellow foam.

Workup

  1. temperatureThe mixture was heated to 80 degrees for 2 hours
  2. filtrationfiltered while hot
  3. additionWater and ethyl acetate were added to the filtrate
  4. filtrationfiltered
  5. customThe layers were separated
  6. washThe organic layer was washed successively with ammonium hydroxide and water
  7. dry with materialdried over anhydrous magnesium sulfate
  8. filtrationfiltered
  9. concentrationconcentrated under reduced pressure

Sources & evidence

ORD record
ord-f8a8639b5d6f4dfcb0d5fe76b1f4907f
Source dataset
uspto-grants-2011_08
Patent number
US08003785B2

Reaction notes

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