Dimethyl Sulfoxide → 7-(2-Formyl-6-oxo-piperidin-1-yl)-heptanoic acid methyl ester
Reaction equation
CCN=C=NCCCN(C)C.CS(C)=O.[CH3:16][O:17][C:18](=[O:34])[CH2:19][CH2:20][CH2:21][CH2:22][CH2:23][CH2:24][N:25]1[C:30](=[O:31])[CH2:29][CH2:28][CH2:27][CH:26]1[CH2:32][OH:33].FC(F)(F)C([O-])=O.[NH+]1C=CC=CC=1>C1C=CC=CC=1>[CH3:16][O:17][C:18](=[O:34])[CH2:19][CH2:20][CH2:21][CH2:22][CH2:23][CH2:24][N:25]1[C:30](=[O:31])[CH2:29][CH2:28][CH2:27][CH:26]1[CH:32]=[O:33]Participants
6
Reactant 4
Product 1
Reagents, catalysts & solvents 1
Conditions
- Temperature
- 0 °C
Procedure
EDCI (212 mg, 1.10 mmol) and DMSO (0.10 mL, 1.48 mmol) were added sequentially to a solution of 7-(2-hydroxymethyl-6-oxo-piperidin-1-yl)-heptanoic acid methyl ester (100 mg, 0.37 mmol) in benzene (4.0 mL) at rt. The mixture was cooled to 0° C. and pyridinium trifluoroacetate (79 mg, 0.41 mmol) was added. The reaction was allowed to warm to rt and then was stirred at rt for 3.5 h. The solution was decanted from the oily residue and the residue was washed with benzene (3×3 mL). The combined benzene phases were concentrated in vacuo to afford crude 7-(2-formyl-6-oxo-piperidin-1-yl)-heptanoic acid methyl ester that was used without further purification.
Workup
- temperatureto warm to rt
- customThe solution was decanted from the oily residue
- washthe residue was washed with benzene (3×3 mL)
- concentrationThe combined benzene phases were concentrated in vacuo
Sources & evidence
- ORD record
- ord-c7f5f42b4fa44474887477c746409448
- Source dataset
- uspto-grants-2007_02
- Patent number
- US07179820B2
Reaction notes
Loading…