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Dimethylformamide → 7-(4-butoxyethoxyphenyl)-1-(2-furylmethyl)-N-[4-[[N-methyl-N-(tetrahydropyran-4-yl)amino]methyl]phenyl]-2,3-dihydro-1-benzazepine-4-carboxamide

HRID 586971
Notes
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Reaction equation

HRID 586971 reaction equation
[CH3:1][N:2]([CH:4]=O)[CH3:3].[CH2:6]([O:10][CH2:11][CH2:12][O:13][C:14]1[CH:19]=[CH:18][C:17]([C:20]2[CH:21]=[CH:22][C:23]3[N:29]([CH2:30][C:31]4[O:32][CH:33]=[CH:34][CH:35]=4)[CH2:28][CH2:27][C:26]([C:36](O)=[O:37])=[CH:25][C:24]=3[CH:39]=2)=[CH:16][CH:15]=1)[CH2:7][CH2:8][CH3:9].S(Cl)(Cl)=O>O1CCCC1>[CH2:6]([O:10][CH2:11][CH2:12][O:13][C:14]1[CH:19]=[CH:18][C:17]([C:20]2[CH:21]=[CH:22][C:23]3[N:29]([CH2:30][C:31]4[O:32][CH:33]=[CH:34][CH:35]=4)[CH2:28][CH2:27][C:26]([C:36]([NH:29][C:23]4[CH:24]=[CH:39][C:20]([CH2:4][N:2]([CH3:1])[CH:3]5[CH2:12][CH2:11][O:10][CH2:6][CH2:7]5)=[CH:21][CH:22]=4)=[O:37])=[CH:25][C:24]=3[CH:39]=2)=[CH:16][CH:15]=1)[CH2:7][CH2:8][CH3:9]
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 3

HCID 6228DimethylformamideHCID 24386Thionyl ChlorideHCID 69746297HCID 69746297, compound

Product 1

HCID 223291997-(4-butoxyethoxyphenyl)-1-(2-furylmethyl)-N-[4-[[N-methyl-N-(tetrahydropyran-4-yl)amino]methyl]phenyl]-2,3-dihydro-1-benzazepine-4-carboxamide

Reagents, catalysts & solvents 1

HCID 8028Tetrahydrofuran
Solvent

Procedure

One droplet of DMF was added to a solution of 7-(4-butoxyethoxyphenyl)-1-(2-furylmethyl)-2,3-dihydro-1-benzazepine-4-carboxylic acid (200 mg) in tetrahydrofuran (10 ml). Then, thionyl chloride (155 mg) was added at 0° C., the temperature was returned to room temperature, and the mixture was stirred under nitrogen atmosphere for 1 hour. Then, the solvent and excess thionyl chloride were evaporated, and the resulting residue was suspended in tetrahydrofuran (15 ml) and added to a solution of 4-[[N-methyl-N-(tetrahydropyran-4-yl)amino]methyl]aniline (115 mg) and triethylamine (1.1 g) in tetrahydrofuran (10 ml) at 0° C. The mixture was stirred under nitrogen atmosphere at room temperature for 2.5 hours, to the mixture was added water, and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine and dried with magnesium sulfate. The solvent was evaporated under reduced pressure, and the resulting residue was separated and purified with silica gel column chromatography (methanol:ethyl acetate=1:8), which was recrystallized from hexane-ethyl acetate to give 7-(4-butoxyethoxyphenyl)-1-(2-furylmethyl)-N-[4-[[N-methyl-N-(tetrahydropyran-4-yl)amino]methyl]phenyl]-2,3-dihydro-1-benzazepine-4-carboxamide (Compound 72) (199 mg) as yellow crystals.

Workup

  1. customwas returned to room temperature
  2. customThen, the solvent and excess thionyl chloride were evaporated
  3. additionadded to a solution of 4-[[N-methyl-N-(tetrahydropyran-4-yl)amino]methyl]aniline (115 mg) and triethylamine (1.1 g) in tetrahydrofuran (10 ml) at 0° C
  4. stirringThe mixture was stirred under nitrogen atmosphere at room temperature for 2.5 hours, to the mixture
  5. additionwas added water
  6. extractionthe mixture was extracted with ethyl acetate
  7. washThe organic layer was washed with saturated brine
  8. dry with materialdried with magnesium sulfate
  9. customThe solvent was evaporated under reduced pressure
  10. customthe resulting residue was separated
  11. custompurified with silica gel column chromatography (methanol:ethyl acetate=1:8), which
  12. customwas recrystallized from hexane-ethyl acetate

Sources & evidence

ORD record
ord-958ea2bd81824accab20b1ea29608adc
Source dataset
uspto-grants-2005_08
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US06936602B1

Reaction notes

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