Potassium Carbonate → HCID 24823940, compound

HRID 1823122Notes

Reaction equation

HRID 1823122 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]([C@@H:8]([OH:33])[CH2:9][N:10]([CH2:18][CH2:19][C:20]2[CH:25]=[CH:24][C:23]([C:26]3[CH:31]=[CH:30][C:29]([OH:32])=[CH:28][CH:27]=3)=[CH:22][CH:21]=2)[C:11](=[O:17])[O:12][C:13]([CH3:16])([CH3:15])[CH3:14])[CH:5]=[CH:6][CH:7]=1.C(=O)([O-])[O-].[K+].[K+].Br[CH2:41][C:42]([O:44][C:45]([CH3:48])([CH3:47])[CH3:46])=[O:43]>CN(C)C=O>[C:13]([O:12][C:11]([N:10]([CH2:18][CH2:19][C:20]1[CH:21]=[CH:22][C:23]([C:26]2[CH:27]=[CH:28][C:29]([O:32][CH2:41][C:42]([O:44][C:45]([CH3:48])([CH3:47])[CH3:46])=[O:43])=[CH:30][CH:31]=2)=[CH:24][CH:25]=1)[CH2:9][C@@H:8]([C:4]1[CH:5]=[CH:6][CH:7]=[C:2]([Cl:1])[CH:3]=1)[OH:33])=[O:17])([CH3:14])([CH3:15])[CH3:16]

Participants

5

Reactant 3

HCID 11430Potassium CarbonateHCID 79177tert-Butyl bromoacetateHCID 24823790HCID 24823790, compound

Product 1

HCID 24823940HCID 24823940, compoundYield 82.1%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

To a solution of tert-butyl (2R)-N-[2-(3-chlorophenyl)-2-hydroxyethyl]-N-[2-(4′-hydroxy-1,1′-biphenyl-4-yl)ethyl]carbamate (240 mg) and potassium carbonate (78 mg) in N,N-dimethylformamide (4 ml) was added tert-butyl bromoacetate (110 mg), and the mixture was stirred at room temperature for 3 hours. The mixture was partitioned between ethyl acetate and water. The organic layer was separated, washed with water and brine, dried over magnesium sulfate and evaporated under reduced pressure. The residue was purified by column chromatography on silica gel (hexane/ethyl acetate=3/1) to give tert-butyl [[4′-[2-[N-(tert-butoxycarbonyl)-N-[(2R)-2-(3-chlorophenyl)-2-hydroxyethyl]amino]ethyl]-1,1′-biphenyl-4-yl]oxy]acetate (245 mg).

Workup

  1. customThe mixture was partitioned between ethyl acetate and water
  2. customThe organic layer was separated
  3. washwashed with water and brine
  4. dry with materialdried over magnesium sulfate
  5. customevaporated under reduced pressure
  6. customThe residue was purified by column chromatography on silica gel (hexane/ethyl acetate=3/1)

Sources & evidence

ORD record
ord-df0aded9a64640ff8a8cbc059dc1c5c9
Source dataset
uspto-grants-2006_05
Patent number
US07037938B2

Reaction notes

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