Sodium Hydroxide → HCID 22329188, compound

HRID 587085Notes

Reaction equation

HRID 587085 reaction equation
[CH2:1]([O:5][CH2:6][CH2:7][O:8][C:9]1[CH:14]=[CH:13][C:12]([C:15]2[CH:16]=[CH:17][C:18]3[N:24]([CH2:25][CH2:26][CH2:27][O:28][CH3:29])[CH2:23][CH2:22][C:21]([C:30]([O:32]C)=[O:31])=[CH:20][C:19]=3[CH:34]=2)=[CH:11][CH:10]=1)[CH2:2][CH2:3][CH3:4].[OH-].[Na+]>C1COCC1.CO>[CH2:1]([O:5][CH2:6][CH2:7][O:8][C:9]1[CH:14]=[CH:13][C:12]([C:15]2[CH:16]=[CH:17][C:18]3[N:24]([CH2:25][CH2:26][CH2:27][O:28][CH3:29])[CH2:23][CH2:22][C:21]([C:30]([OH:32])=[O:31])=[CH:20][C:19]=3[CH:34]=2)=[CH:11][CH:10]=1)[CH2:2][CH2:3][CH3:4]

Participants

4

Reactant 2

HCID 14798Sodium HydroxideHCID 22329170methyl 7-[4-(2-butoxyethoxy)phenyl]-1-(3-methoxypropyl)-2,3-dihydro-1H-1-benzazepine-4-carboxylate

Product 1

HCID 22329188HCID 22329188, compoundYield 80.5%

Reagents, catalysts & solvents 1

HCID 21899815MeOH tetrahydrofuranSolvent

Conditions

Temperature
50 °C

Procedure

To a solution of methyl 7-[4-(2-butoxyethoxy)phenyl]-1-(3-methoxypropyl)-2,3-dihydro-1H-1-benzazepine-4-carboxylate (362.3 mg) in a mixture of THF-methanol (5-10 ml) was added 1N sodium hydroxide solution (2.8 ml) at room temperature, and the mixture was stirred at 50° C. for 15 hours. After concentration under reduced pressure, 1N hydrochloric acid was added to pH 3-4, and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine and dried with magnesium sulfate. After concentration under reduced pressure, the resulting crystals were collected by filtration. The crystals were washed with diisopropyl ether and hexane to give 7-[4-(2-butoxyethoxy)phenyl]-1-(3-methoxypropyl)-2,3-dihydro-1H-1-benzazepine-4-carboxylic acid (283 mg) as yellow crystals.

Workup

  1. concentrationAfter concentration under reduced pressure, 1N hydrochloric acid
  2. additionwas added to pH 3-4
  3. extractionthe mixture was extracted with ethyl acetate
  4. washThe organic layer was washed with saturated brine
  5. dry with materialdried with magnesium sulfate
  6. concentrationAfter concentration under reduced pressure
  7. filtrationthe resulting crystals were collected by filtration
  8. washThe crystals were washed with diisopropyl ether and hexane

Sources & evidence

ORD record
ord-903907b2d7bf430d981fef412ad1e047
Source dataset
uspto-grants-2005_08
Patent number
US06936602B1

Reaction notes

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