Ammonia → Perampanel

HRID 497821Notes

Reaction equation

HRID 497821 reaction equation
[C:1]([C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][C:4]=1[C:9]1[C:10](=[O:21])[NH:11][CH:12]=[C:13]([C:15]2[CH:20]=[CH:19][CH:18]=[CH:17][N:16]=2)[CH:14]=1)#[N:2].[C:22]1(B(O)O)[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=1.C(N(CC)CC)C.N>C(Cl)Cl.C([O-])(=O)C.[Cu+2].C([O-])(=O)C.C(OCC)(=O)C.O>[C:1]([C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][C:4]=1[C:9]1[C:10](=[O:21])[N:11]([C:22]2[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=2)[CH:12]=[C:13]([C:15]2[CH:20]=[CH:19][CH:18]=[CH:17][N:16]=2)[CH:14]=1)#[N:2]

Participants

9

Reactant 4

HCID 222AmmoniaHCID 8471TriethylamineHCID 66827Phenylboronic AcidHCID 223189453-(2-Cyanophenyl)-5-(2-pyridyl)-2(1H)-pyridone

Product 1

HCID 9924495PerampanelYield 42.7%

Reagents, catalysts & solvents 4

HCID 8895Cupric acetateCatalystHCID 962WaterSolventHCID 6344DichloromethaneSolventHCID 8857Ethyl AcetateSolvent

Procedure

A suspension of 0.11 g of 3-(2-cyanophenyl)-5-(2-pyridyl)-2(1H)-pyridone, 0.12 g of phenyl boronic acid 0.1 g of copper acetate and 0.3 ml of triethylamine in 10 ml of methylene chloride was stirred at room temperature for overnight. To this were added 5 ml of concentrated aqueous ammonia, 10 ml of water and 40 ml of ethyl acetate and the organic layer was separated, washed with water and a saturated saline solution and dried over magnesium sulfate. The solvent was concentrated in vacuo and the residue was purified by a silica gel column chromatography (ethyl acetate:hexane=1:2) to give 0.06 g of the title product as pale yellow powder.

Workup

  1. customthe organic layer was separated
  2. washwashed with water
  3. dry with materiala saturated saline solution and dried over magnesium sulfate
  4. concentrationThe solvent was concentrated in vacuo
  5. customthe residue was purified by a silica gel column chromatography (ethyl acetate:hexane=1:2)

Sources & evidence

ORD record
ord-d45af7856ed44645b71622c76d396b9d
Source dataset
uspto-grants-2005_09
Patent number
US06949571B2

Reaction notes

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