Hydrochloric Acid → 7-(4-(2-Butoxyethoxy)phenyl]-1-(2,4-dimethyl-1,3-thiazol-5-ylmethyl)-2,3-dihydro-1-benzazepine-4-carboxylic acid

HRID 587069Notes

Reaction equation

HRID 587069 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][C:26]4[S:30][C:29]([CH3:31])=[N:28][C:27]=4[CH3:32])[CH2:23][CH2:22][C:21]([C:33]([O:35]C)=[O:34])=[CH:20][C:19]=3[CH:37]=2)=[CH:11][CH:10]=1)[CH2:2][CH2:3][CH3:4].[OH-].[Na+].Cl>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][C:26]4[S:30][C:29]([CH3:31])=[N:28][C:27]=4[CH3:32])[CH2:23][CH2:22][C:21]([C:33]([OH:35])=[O:34])=[CH:20][C:19]=3[CH:37]=2)=[CH:11][CH:10]=1)[CH2:2][CH2:3][CH3:4]

Participants

6

Reactant 3

HCID 313Hydrochloric AcidHCID 14798Sodium HydroxideHCID 22329187Methyl 7-[4-(2-butoxyethoxy)phenyl]-1-(2,4-dimethyl-1,3-thiazol-5-ylmethyl)-2,3-dihydro-1-benzazepine-4-carboxylate

Product 1

HCID 223291837-(4-(2-Butoxyethoxy)phenyl]-1-(2,4-dimethyl-1,3-thiazol-5-ylmethyl)-2,3-dihydro-1-benzazepine-4-carboxylic acidYield 78.1%

Reagents, catalysts & solvents 2

HCID 887MethanolSolventHCID 8028TetrahydrofuranSolvent

Procedure

In THF (5.0 ml)/methanol (2.5 ml) was dissolved methyl 7-[4-(2-butoxyethoxy)phenyl]-1-(2,4-dimethyl-1,3-thiazol-5-ylmethyl)-2,3-dihydro-1-benzazepine-4-carboxylate (0.25 g). To the solution was added 1N sodium hydroxide solution (2.5 ml), and the mixture was stirred at room temperature for 16 hours. pH was adjusted to approximate with 1N hydrochloric acid, and the solvent was concentrated to half under reduced pressure. The concentrated material was extracted with ethyl acetate/THF, and the extract was washed with saturated brine and dried with magnesium sulfate. The solvent was removed under reduced pressure, and the resulting residue was washed with hexane/ethyl acetate (8/1) to give 7-(4-(2-butoxyethoxy)phenyl]-1-(2,4-dimethyl-1,3-thiazol-5-ylmethyl)-2,3-dihydro-1-benzazepine-4-carboxylic acid (190 mg).

Workup

  1. concentrationthe solvent was concentrated to half under reduced pressure
  2. extractionThe concentrated material was extracted with ethyl acetate/THF
  3. washthe extract was washed with saturated brine
  4. dry with materialdried with magnesium sulfate
  5. customThe solvent was removed under reduced pressure
  6. washthe resulting residue was washed with hexane/ethyl acetate (8/1)

Sources & evidence

ORD record
ord-dc67f6769b9b4e7b9e95375c68e8eea4
Source dataset
uspto-grants-2005_08
Patent number
US06936602B1

Reaction notes

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