Chloroacetyl chloride → 1-[1-(4-Fluorophenethyl)piperidin-4-yl]-6-(2-pyrrolidon-1-yl)methylindole

HRID 1790519Notes

Reaction equation

HRID 1790519 reaction equation
[F:1][C:2]1[CH:26]=[CH:25][C:5]([CH2:6][CH2:7][N:8]2[CH2:13][CH2:12][CH:11]([N:14]3[C:22]4[C:17](=[CH:18][CH:19]=[C:20]([CH2:23][NH2:24])[CH:21]=4)[CH:16]=[CH:15]3)[CH2:10][CH2:9]2)=[CH:4][CH:3]=1.Cl[CH2:28][C:29](Cl)=[O:30].[CH2:32](N(CC)CC)[CH3:33].C(=O)(O)[O-].[Na+]>C(OCC)(=O)C.C(#N)C>[F:1][C:2]1[CH:3]=[CH:4][C:5]([CH2:6][CH2:7][N:8]2[CH2:9][CH2:10][CH:11]([N:14]3[C:22]4[C:17](=[CH:18][CH:19]=[C:20]([CH2:23][N:24]5[CH2:33][CH2:32][CH2:28][C:29]5=[O:30])[CH:21]=4)[CH:16]=[CH:15]3)[CH2:12][CH2:13]2)=[CH:25][CH:26]=1

Participants

7

Reactant 4

HCID 6577Chloroacetyl chlorideHCID 8471TriethylamineHCID 516892Sodium BicarbonateHCID 22038390HCID 22038390, compound

Product 1

HCID 220379311-[1-(4-Fluorophenethyl)piperidin-4-yl]-6-(2-pyrrolidon-1-yl)methylindoleYield 50.3%

Reagents, catalysts & solvents 2

HCID 6342AcetonitrileSolventHCID 8857Ethyl AcetateSolvent

Procedure

A mixture of 1-[1-(4-fluorophenethyl)piperidin-4-yl]-6-aminomethylindole (150 mg) obtained in Example 322-3), chloroacetyl chloride (60 mg), triethylamine (50 mg) and acetonitrile (5 ml) was stirred under ice cooling for 2 hr. Then a saturated aqueous solution of sodium bicarbonate and ethyl acetate were added to the reaction solution. The organic layer was separated, washed with brine, dried over anhydrous magnesium sulfate and concentrated under reduced pressure. The resulting residue was purified by silica gel column chromatography (hexane/ethyl acetate system) to give the title compound (90 mg) as white needles (yield: 49%).

Workup

  1. customThe organic layer was separated
  2. washwashed with brine
  3. dry with materialdried over anhydrous magnesium sulfate
  4. concentrationconcentrated under reduced pressure
  5. customThe resulting residue was purified by silica gel column chromatography (hexane/ethyl acetate system)

Sources & evidence

ORD record
ord-2d73e15d03a34a1d801a6b2b29e3d121
Source dataset
uspto-grants-2006_07
Patent number
US07071201B2

Reaction notes

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