Hydrogen chloride-ethyl acetate → HCID 71252960, compound

HRID 2411660Notes

Reaction equation

HRID 2411660 reaction equation
[CH3:1][C:2]1[C:3]([N:9]2[CH2:14][CH2:13][N:12]([C:15]([C:17]3[CH:22]=[CH:21][C:20]([N:23]4[C@@H:27]([CH2:28][O:29][CH3:30])[CH2:26][CH2:25][C:24]4=[O:31])=[CH:19][CH:18]=3)=[O:16])[CH2:11][CH2:10]2)=[N:4][CH:5]=[C:6]([CH3:8])[CH:7]=1.[ClH:32].C(OCC)(=O)C>C(OCC)(=O)C>[ClH:32].[CH3:1][C:2]1[C:3]([N:9]2[CH2:10][CH2:11][N:12]([C:15]([C:17]3[CH:18]=[CH:19][C:20]([N:23]4[C@@H:27]([CH2:28][O:29][CH3:30])[CH2:26][CH2:25][C:24]4=[O:31])=[CH:21][CH:22]=3)=[O:16])[CH2:13][CH2:14]2)=[N:4][CH:5]=[C:6]([CH3:8])[CH:7]=1

Participants

4

Reactant 2

HCID 21866389Hydrogen chloride-ethyl acetateHCID 71252638HCID 71252638, compound

Product 1

HCID 71252960HCID 71252960, compound

Reagents, catalysts & solvents 1

HCID 8857Ethyl AcetateSolvent

Procedure

To a mixture of (R)-1-{4-[4-(3,5-dimethylpyridin-2-yl)piperazine-1-carbonyl]phenyl}-5-hydroxymethylpyrrolidin-2-one (200 mg) described in Example 284 and sodium hydride (22 mg) was added tetrahydrofuran, and the mixture was stirred at room temperature for 15 min. To the reaction mixture was added methyl tosylate (74 μL), and the mixture was further stirred at room temperature for 2 days. Water was added to the reaction mixture, and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine, dried over sodium sulfate, and the solvent was evaporated. The obtained residue was purified by column chromatography (hexane:ethyl acetate) to give (R)-1-{4-[4-(3,5-dimethylpyridin-2-yl)piperazine-1-carbonyl]phenyl}-5-methoxymethylpyrrolidin-2-one. The obtained (R)-1-{4-[4-(3,5-dimethylpyridin-2-yl)piperazine-1-carbonyl]phenyl}-5-methoxymethylpyrrolidin-2-one was dissolved in ethyl acetate, 4N hydrogen chloride/ethyl acetate was added, and the precipitate was collected by filtration to give the title compound (113 mg).

Workup

  1. filtrationthe precipitate was collected by filtration

Sources & evidence

ORD record
ord-3d306ae90ae1479ab217741c55f82296
Source dataset
uspto-grants-2014_08
Patent number
US08816079B2

Reaction notes

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