Sodium Carbonate → HCID 68634671, compound

HRID 1176424Notes

Reaction equation

HRID 1176424 reaction equation
[CH3:1][O:2][C:3]1[CH:50]=[CH:49][CH:48]=[CH:47][C:4]=1[CH2:5][O:6][CH2:7][CH2:8][CH2:9][O:10][C:11]1[CH:16]=[CH:15][C:14]([CH:17]2[CH2:22][CH2:21][N:20]([C:23]([O:25][C:26]([CH3:29])([CH3:28])[CH3:27])=[O:24])[CH2:19][CH:18]2[O:30][CH2:31][C:32]2[CH:37]=[CH:36][CH:35]=[C:34](B3OC(C)(C)C(C)(C)O3)[CH:33]=2)=[CH:13][CH:12]=1.Br[C:52]1[N:53]([CH2:57][CH2:58][CH2:59][O:60][CH3:61])[CH:54]=[CH:55][N:56]=1.C(=O)([O-])[O-].[Na+].[Na+]>COCCOC.C(O)C.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[CH3:1][O:2][C:3]1[CH:50]=[CH:49][CH:48]=[CH:47][C:4]=1[CH2:5][O:6][CH2:7][CH2:8][CH2:9][O:10][C:11]1[CH:12]=[CH:13][C:14]([CH:17]2[CH2:22][CH2:21][N:20]([C:23]([O:25][C:26]([CH3:28])([CH3:29])[CH3:27])=[O:24])[CH2:19][CH:18]2[O:30][CH2:31][C:32]2[CH:37]=[CH:36][CH:35]=[C:34]([C:52]3[N:53]([CH2:57][CH2:58][CH2:59][O:60][CH3:61])[CH:54]=[CH:55][N:56]=3)[CH:33]=2)=[CH:15][CH:16]=1

Participants

7

Reactant 3

HCID 10340Sodium CarbonateHCID 68499348HCID 68499348, compoundHCID 68500086HCID 68500086, compound

Product 1

HCID 68634671HCID 68634671, compound

Reagents, catalysts & solvents 3

HCID 178418397HCID 178418397, compoundCatalystHCID 702EthanolSolventHCID 80711,2-DimethoxyethaneSolvent2×

Procedure

The mixture of 0.050 g of tetrakis(triphenylphosphine)palladium(0) in 1.0 ml of 1,2-dimethoxyethane is admixed with the solution of 0.319 g of tert-butyl 4-{4-[3-(2-methoxybenzyloxy)propoxy]phenyl}-3-[3-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)benzyloxy]piperidine-1-carboxylate and 0.144 g of 2-bromo-1-(3-methoxypropyl)-1H-imidazole in 2.0 ml of 1,2-dimethoxyethane and 0.3 ml of ethanol. The reaction mixture is admixed with 0.9 ml of 2M sodium carbonate solution and stirred at reflux over 20 hours. The resulting reaction solution is concentrated by evaporation, admixed with 1:1 water/brine mixture (30 ml) and extracted with ethyl acetate (2×30 ml). The organic phases are washed with brine (30 ml), dried over sodium sulphate, filtered and concentrated by evaporation. The title compound is obtained as a colourless oil from the residue by means of flash chromatography (SiO2 60F). Rf=0.15 (97:3 dichloromethane-methanol); Rt=5.23.

Workup

  1. temperatureat reflux over 20 hours
  2. customThe resulting reaction solution
  3. concentrationis concentrated by evaporation
  4. extractionextracted with ethyl acetate (2×30 ml)
  5. washThe organic phases are washed with brine (30 ml)
  6. dry with materialdried over sodium sulphate
  7. filtrationfiltered
  8. concentrationconcentrated by evaporation

Sources & evidence

ORD record
ord-576cfb597c5144f7a1729ec206a3b2fb
Source dataset
uspto-grants-2010_11
Patent number
US07842688B2

Reaction notes

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