Water → 1-Butyl-3-[1-(Cyclohexylmethyl)piperidin-4-yl]-4-phenyl-3,4-dihydro-2(1H)-quinazolinone

HRID 479457Notes

Reaction equation

HRID 479457 reaction equation
[CH:1]1([CH2:7][N:8]2[CH2:13][CH2:12][CH:11]([N:14]3[CH:23]([C:24]4[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=4)[C:22]4[C:17](=[CH:18][CH:19]=[CH:20][CH:21]=4)[NH:16][C:15]3=[O:30])[CH2:10][CH2:9]2)[CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]1.[H-].[Na+].I[CH2:34][CH2:35][CH2:36][CH3:37].O>CN(C=O)C>[CH2:34]([N:16]1[C:17]2[C:22](=[CH:21][CH:20]=[CH:19][CH:18]=2)[CH:23]([C:24]2[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=2)[N:14]([CH:11]2[CH2:12][CH2:13][N:8]([CH2:7][CH:1]3[CH2:2][CH2:3][CH2:4][CH2:5][CH2:6]3)[CH2:9][CH2:10]2)[C:15]1=[O:30])[CH2:35][CH2:36][CH3:37]

Participants

6

Reactant 4

HCID 962WaterHCID 10962Butyl iodideHCID 24758Sodium hydrideHCID 158963313-[1-(cyclohexylmethyl)piperidin-4-yl]-4-phenyl-3,4-dihydro-2(1H)-quinazolinone

Product 1

HCID 98042611-Butyl-3-[1-(Cyclohexylmethyl)piperidin-4-yl]-4-phenyl-3,4-dihydro-2(1H)-quinazolinoneYield 76%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent2×

Conditions

Temperature
60 °C

Procedure

To a solution of 100 mg (0.25 mmol) of 3-[1-(cyclohexylmethyl)piperidin-4-yl]-4-phenyl-3,4-dihydro-2(1H)-quinazolinone in 2 ml of DMF, 22 mg (0.55 mmol) of sodium hydride (60%) were added at room temperature and stirred at about 60° C. for one hour. After allowing the reaction mixture to stand cool, a solution of 69 mg (0.38 mmol) of 1-iodobutane in 1 ml of DMF was added thereto at room temperature and stirred at about 60° C. for 2 hours. The reaction mixture was poured into water, extracted with ethyl acetate, washed with water and saturated brine, and dried over anhydrous magnesium sulfate. After the solvent was evaporated under reduced pressure, the obtained residue was purified by silica gel column chromatography (chloroform—10% methanol/chloroform) to give 88 mg (0.19 mmol) of the title compound as colorless oil.

Workup

  1. temperatureto stand cool
  2. stirringat room temperature and stirred at about 60° C. for 2 hours
  3. extractionextracted with ethyl acetate
  4. washwashed with water and saturated brine
  5. dry with materialdried over anhydrous magnesium sulfate
  6. customAfter the solvent was evaporated under reduced pressure
  7. customthe obtained residue was purified by silica gel column chromatography (chloroform—10% methanol/chloroform)

Sources & evidence

ORD record
ord-4d34a768494f4be89f0062a6d828672e
Source dataset
uspto-grants-2003_11
Patent number
US06645971B1

Reaction notes

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