Dimethyl Sulfoxide → 7-((R)-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][C@@H: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][C@@H:26]1[CH:32]=[O:33]Participants
6
Reactant 4
Product 1
Reagents, catalysts & solvents 1
Conditions
- Temperature
- 0 °C
Procedure
EDCI (119 mg, 0.62 mmol) and DMSO (59 μL, 0.83 mmol) were added sequentially to a solution of 7-((R)-2-hydroxymethyl-6-oxo-piperidin-1-yl)-heptanoic acid methyl ester (56 mg, 0.21 mmol) in benzene (2.0 mL) at rt. The mixture was cooled to 0° C. and pyridinium trifluoroacetate (44 mg, 0.23 mmol) was added. The reaction was allowed to warm to rt and then was stirred at rt for 3 h. The solution was decanted from the oily residue and the residue was washed with benzene (3×2 mL). The combined benzene phases were concentrated in vacuo to afford crude 7-((R)-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 (3×2 mL)
- concentrationThe combined benzene phases were concentrated in vacuo
Sources & evidence
- ORD record
- ord-3d07f8088dae426cb53d121eb8ea217e
- Source dataset
- uspto-grants-2007_02
- Patent number
- US07179820B2
Reaction notes
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