7-[2-Oxo-6-((E)-3-oxo-oct-1-enyl)-piperidin-1-yl]-hept-5-ynoic acid methyl ester → 7-[2-Oxo-6-((E)-3-oxo-oct-1-enyl)-piperidin-1-yl]-hept-5-ynoic acid

HRID 349295Notes

Reaction equation

HRID 349295 reaction equation
C[O:2][C:3](=[O:26])[CH2:4][CH2:5][CH2:6][C:7]#[C:8][CH2:9][N:10]1[CH:15](/[CH:16]=[CH:17]/[C:18](=[O:24])[CH2:19][CH2:20][CH2:21][CH2:22][CH3:23])[CH2:14][CH2:13][CH2:12][C:11]1=[O:25]>C(#N)C.P([O-])([O-])([O-])=O>[O:25]=[C:11]1[CH2:12][CH2:13][CH2:14][CH:15](/[CH:16]=[CH:17]/[C:18](=[O:24])[CH2:19][CH2:20][CH2:21][CH2:22][CH3:23])[N:10]1[CH2:9][C:8]#[C:7][CH2:6][CH2:5][CH2:4][C:3]([OH:26])=[O:2]

Participants

4

Reactant 1

HCID 104063027-[2-Oxo-6-((E)-3-oxo-oct-1-enyl)-piperidin-1-yl]-hept-5-ynoic acid methyl ester

Product 1

HCID 103156857-[2-Oxo-6-((E)-3-oxo-oct-1-enyl)-piperidin-1-yl]-hept-5-ynoic acidYield 97%

Reagents, catalysts & solvents 2

HCID 1061PhosphateSolventHCID 6342AcetonitrileSolvent2×

Procedure

Rabbit liver esterase (134 units/mg, 3 mg) was added to a solution of 7-[2-oxo-6-((E)-3-oxo-oct-1-enyl)-piperidin-1-yl]-hept-5-ynoic acid methyl ester (18 mg, 0.45 mmol) in acetonitrile (0.3 mL) and pH 7.2 phosphate buffer (3.0 mL). After 18.5 h, acetonitrile (10 mL) was added and the reaction mixture was concentrated to dryness in vacuo. Purification of the residue by flash column chromatography on silica gel (CH2Cl2→3% MeOH/CH2Cl2, gradient) afforded 17 mg (97%) of the title compound.

Workup

  1. concentrationthe reaction mixture was concentrated to dryness in vacuo
  2. customPurification of the residue by flash column chromatography on silica gel (CH2Cl2→3% MeOH/CH2Cl2, gradient)

Sources & evidence

ORD record
ord-b8b1107983e84986a34600590779cc28
Source dataset
uspto-grants-2007_02
Patent number
US07179820B2

Reaction notes

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