Potassium Iodide → 3-{2-[4-(4-Fluoro-benzyl)-(2R,5S)-2,5-dimethyl-piperazin-1-yl]-2-oxo-ethoxy}-6-methyl-pyridine-2-carbaldehyde

HRID 11694

Reaction equation

[OH:1][C:2]1[C:3]([CH:9]=[O:10])=[N:4][C:5]([CH3:8])=[CH:6][CH:7]=1.Cl[CH2:12][C:13]([N:15]1[CH2:20][C@H:19]([CH3:21])[N:18]([CH2:22][C:23]2[CH:28]=[CH:27][C:26]([F:29])=[CH:25][CH:24]=2)[CH2:17][C@H:16]1[CH3:30])=[O:14].C(=O)([O-])[O-].[K+].[K+].[I-].[K+]>CN(C)C=O.CCOC(C)=O>[F:29][C:26]1[CH:27]=[CH:28][C:23]([CH2:22][N:18]2[C@@H:19]([CH3:21])[CH2:20][N:15]([C:13](=[O:14])[CH2:12][O:1][C:2]3[C:3]([CH:9]=[O:10])=[N:4][C:5]([CH3:8])=[CH:6][CH:7]=3)[C@H:16]([CH3:30])[CH2:17]2)=[CH:24][CH:25]=1

Participants

Conditions

Temperature: 60 °C

Procedure

To a solution of 3-hydroxy-6-methyl-pyridine-2-carbaldehyde (0.27 g, 1.95 mmol) in dimethylformamide (4 mL) was added 2-chloro-1-[4-(4-fluoro-benzyl)-(2R,5S)-2,5-dimethyl-piperazin-1-yl]-ethanone (0.53 g, 1.77 mmol), potassium carbonate (0.49 g, 3.5 mmol) and potassium iodide (0.29 g, 1.8 mmol). The resulting mixture was stirred at 60° C. overnight, then diluted with EtOAc, washed with brine and the organic layer was dried over magnesium sulfate. Filtration followed by concentration in vacuo gave the title compound (0.85 g)

Workup

washwashed with brine
dry with materialthe organic layer was dried over magnesium sulfate
filtrationFiltration
concentrationfollowed by concentration in vacuo

Sources & evidence

ORD record: ord-5b57c3e01bd9436dbaed9f98f84c2a35
Source dataset: uspto-grants-2006_08
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07098212B2

Linked notes

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