Potassium Carbonate → 2-(5-Chloro-2-(2-[4-(4-Fluoro-Benzyl)-(2R,5S)-2,5-Dimethyl-Piperazin-1-Yl]-2-Oxo-Ethoxy}-Phenoxy)-Nicotinic Acid

HRID 11704

Reaction equation

HRID 11704 reaction equation
[Cl:1][C:2]1[CH:27]=[CH:26][C:5]([O:6][CH2:7][C:8]([N:10]2[CH2:15][C@H:14]([CH3:16])[N:13]([CH2:17][C:18]3[CH:23]=[CH:22][C:21]([F:24])=[CH:20][CH:19]=3)[CH2:12][C@H:11]2[CH3:25])=[O:9])=[C:4]([OH:28])[CH:3]=1.Cl[C:30]1[N:38]=[CH:37][CH:36]=[CH:35][C:31]=1[C:32]([OH:34])=[O:33].C(=O)([O-])[O-].[K+].[K+]>CN(C)C=O.C(OCC)(=O)C.[Cu].[Cu]I>[Cl:1][C:2]1[CH:27]=[CH:26][C:5]([O:6][CH2:7][C:8]([N:10]2[CH2:15][C@H:14]([CH3:16])[N:13]([CH2:17][C:18]3[CH:23]=[CH:22][C:21]([F:24])=[CH:20][CH:19]=3)[CH2:12][C@H:11]2[CH3:25])=[O:9])=[C:4]([CH:3]=1)[O:28][C:30]1[N:38]=[CH:37][CH:36]=[CH:35][C:31]=1[C:32]([OH:34])=[O:33]

Participants

8

Reactant 3

HCID 11430Potassium CarbonateHCID 762582-Chloronicotinic acidHCID 537887242-(4-Chloro-2-hydroxy-phenoxy)-1-[4-(4-fluoro-benzyl)-(2R,5S)-2,5-dimethyl-piperazin-1-yl]-ethanone

Product 1

HCID 696553562-(5-Chloro-2-(2-[4-(4-Fluoro-Benzyl)-(2R,5S)-2,5-Dimethyl-Piperazin-1-Yl]-2-Oxo-Ethoxy}-Phenoxy)-Nicotinic Acid

Reagents, catalysts & solvents 4

HCID 23978CopperCatalystHCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)CatalystHCID 6228DimethylformamideSolventHCID 8857Ethyl AcetateSolvent

Conditions

Temperature
145 °C

Procedure

To a solution of 2-(4-chloro-2-hydroxy-phenoxy)-1-[4-(4-fluoro-benzyl)-(2R,5S)-2,5-dimethyl-piperazin-1-yl]-ethanone (0.10 g, 0.25 mmol), and 2-chloro-nicotinic acid (0.045 g, 0.28 mmol) in dimethylformamide (0.75 mL) were added potassium carbonate (0.084 g, 0.60 mmol), copper (0.0050 g, 0.078 mmol) and copper (I) iodide (0.0050 g, 0.0.026 mmol). The resulting mixture was stirred at 145° C. for 2 hours. The reaction was cooled and diluted with ethyl acetate and washed with water. The organic layer was washed with saturated aqueous sodium chloride, dried over magnesium sulfate and concentrated in vacuo. Chromatography on silica gel followed by trituration with methylene chloride/hydrogen chloride in diethyl ether gave the title compound as the hydrochloride salt (0.022 g, LRMS 528.4, 530.4).

Workup

  1. temperatureThe reaction was cooled
  2. washwashed with water
  3. washThe organic layer was washed with saturated aqueous sodium chloride
  4. dry with materialdried over magnesium sulfate
  5. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-a2b9b19a08364319a45c2b02891efc83
Source dataset
uspto-grants-2006_08
Patent number
US07098212B2

Linked notes

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