{(Z)-4-[(R)-2-Oxo-6-((E)-3-oxo-4-phenyl-but-1-enyl)-piperidin-1-yl]-but-2-enyloxy}-acetic acid methyl ester → {4-[(R)-2-Oxo-6-(3-oxo-4-phenyl-butyl)-piperidin-1-yl]-butoxy}-acetic acid methyl ester

HRID 349341Notes

Reaction equation

HRID 349341 reaction equation
[CH3:1][O:2][C:3](=[O:28])[CH2:4][O:5][CH2:6]/[CH:7]=[CH:8]\[CH2:9][N:10]1[C@@H:15](/[CH:16]=[CH:17]/[C:18](=[O:26])[CH2:19][C:20]2[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=2)[CH2:14][CH2:13][CH2:12][C:11]1=[O:27].[H][H]>[Pd].CO>[CH3:1][O:2][C:3](=[O:28])[CH2:4][O:5][CH2:6][CH2:7][CH2:8][CH2:9][N:10]1[C@@H:15]([CH2:16][CH2:17][C:18](=[O:26])[CH2:19][C:20]2[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=2)[CH2:14][CH2:13][CH2:12][C:11]1=[O:27]

Participants

5

Reactant 2

HCID 60023029{(Z)-4-[(R)-2-Oxo-6-((E)-3-oxo-4-phenyl-but-1-enyl)-piperidin-1-yl]-but-2-enyloxy}-acetic acid methyl esterHCID 178418361HCID 178418361, compound

Product 1

HCID 11372703{4-[(R)-2-Oxo-6-(3-oxo-4-phenyl-butyl)-piperidin-1-yl]-butoxy}-acetic acid methyl esterYield 85.2%

Reagents, catalysts & solvents 2

HCID 23938PalladiumCatalystHCID 887MethanolSolvent

Procedure

Palladium on carbon (10 wt. %, 2 mg) was added to a solution of {(Z)-4-[(R)-2-oxo-6-((E)-3-oxo-4-phenyl-but-1-enyl)-piperidin-1-yl]-but-2-enyloxy}-acetic acid methyl ester (9.7 mg, 0.025 mmol) in MeOH (1.5 mL). A hydrogen atmosphere was established by evacuating and refilling with hydrogen (3×) and the reaction mixture was stirred under a balloon of hydrogen for 19 h. The reaction mixture was filtered through celite, washing with MeOH, and the filtrate was concentrated in vacuo to afford 8.3 mg (85%) of the title compound.

Workup

  1. customby evacuating
  2. filtrationThe reaction mixture was filtered through celite
  3. washwashing with MeOH
  4. concentrationthe filtrate was concentrated in vacuo

Sources & evidence

ORD record
ord-97a0125af9964440a3d155d411766ac6
Source dataset
uspto-grants-2007_02
Patent number
US07179820B2

Reaction notes

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