Sodium Bicarbonate → HCID 69522226, compound

HRID 856397Notes

Reaction equation

HRID 856397 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[NH:24][CH2:23][CH2:22][C:21]([C:25]([NH:27][C:28]4[CH:33]=[CH:32][C:31]([CH:34]([OH:43])[C:35]5[CH:40]=[C:39]([CH3:41])[CH:38]=[CH:37][N+:36]=5[O-:42])=[C:30]([O:44][CH2:45][CH3:46])[CH:29]=4)=[O:26])=[CH:20][C:19]=3[CH:47]=2)=[CH:11][CH:10]=1)[CH2:2][CH2:3][CH3:4].C(=O)(O)[O-].[Na+]>ClCCCl>[CH2:1]([O:5][CH2:6][CH2:7][O:8][C:9]1[CH:10]=[CH:11][C:12]([C:15]2[CH:16]=[CH:17][C:18]3[N:24]([CH2:11][CH:12]([CH3:15])[CH3:13])[CH2:23][CH2:22][C:21]([C:25]([NH:27][C:28]4[CH:33]=[CH:32][C:31]([CH:34]([OH:43])[C:35]5[CH:40]=[C:39]([CH3:41])[CH:38]=[CH:37][N+:36]=5[O-:42])=[C:30]([O:44][CH2:45][CH3:46])[CH:29]=4)=[O:26])=[CH:20][C:19]=3[CH:47]=2)=[CH:13][CH:14]=1)[CH2:2][CH2:3][CH3:4]

Participants

4

Reactant 2

HCID 516892Sodium BicarbonateHCID 69521833HCID 69521833, compound

Product 1

HCID 69522226HCID 69522226, compoundYield 162.4%

Reagents, catalysts & solvents 1

HCID 111,2-DichloroethaneSolvent

Procedure

7-[4-(2-butoxyethoxy)phenyl]-N-[3-ethoxy-4-[hydroxy(4-methyl-1-oxidopyridin-2-yl)methyl]phenyl]-2,3-dihydro-1H-1-benzazepine-4-carboxamide (0.6 g) and isobutylaldehyde (0.27 ml) were dissolved in 1,2-dichloroethane (50 ml), and to the solution, triacetoxy sodium borohydride (1 g) was added under ice-cooling and the mixture was stirred overnight at room temperature. The mixture was neutralized with solution of sodium bicarbonate, concentrated, and extracted with ethyl acetate. The organic layer was washed with water and saturated brine, and dried over anhydrous magnesium sulfate. The solvent was distilled off, and the residue was purified by silica gel column chromatography (elution solvent: ethyl acetate) to give crude crystals, which were recrystallized from ethyl acetate-hexane, to give 7-[4-(2-butoxyethoxy)phenyl]-N-[3-ethoxy-4-[hydroxy(4-methyl-1-oxidopyridin-2-yl)methyl]phenyl]-1-isobutyl-2,3-dihydro-1H-1-benzazepine-4-carboxamide (compound 12) (0.53 g) as yellow crystals.

Workup

  1. temperaturecooling
  2. concentrationconcentrated
  3. extractionextracted with ethyl acetate
  4. washThe organic layer was washed with water and saturated brine
  5. dry with materialdried over anhydrous magnesium sulfate
  6. distillationThe solvent was distilled off
  7. customthe residue was purified by silica gel column chromatography (elution solvent: ethyl acetate)
  8. customto give crude crystals, which
  9. customwere recrystallized from ethyl acetate-hexane

Sources & evidence

ORD record
ord-58f76f00857f4870961c639d48122a11
Source dataset
uspto-grants-2007_08
Patent number
US07262185B2

Reaction notes

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