Sodium borohydride → HCID 18001087, compound

HRID 1249983Notes

Reaction equation

HRID 1249983 reaction equation
[Cl:1][C:2]1[CH:3]=[CH:4][C:5]2[N:11]([C:12](=[O:29])[C:13]3[CH:18]=[CH:17][C:16]([C:19](=[O:28])[CH2:20][C:21]4[CH:26]=[CH:25][CH:24]=[CH:23][C:22]=4[CH3:27])=[CH:15][CH:14]=3)[CH2:10][CH2:9][CH2:8][CH:7]([CH2:30][C:31]([N:33]3[CH2:38][CH2:37][N:36]([CH3:39])[CH2:35][CH2:34]3)=[O:32])[C:6]=2[CH:40]=1.[BH4-].[Na+]>C(Cl)Cl.CO>[Cl:1][C:2]1[CH:3]=[CH:4][C:5]2[N:11]([C:12](=[O:29])[C:13]3[CH:18]=[CH:17][C:16]([CH:19]([OH:28])[CH2:20][C:21]4[CH:26]=[CH:25][CH:24]=[CH:23][C:22]=4[CH3:27])=[CH:15][CH:14]=3)[CH2:10][CH2:9][CH2:8][CH:7]([CH2:30][C:31]([N:33]3[CH2:38][CH2:37][N:36]([CH3:39])[CH2:35][CH2:34]3)=[O:32])[C:6]=2[CH:40]=1

Participants

5

Reactant 2

HCID 4311764Sodium borohydrideHCID 18001033HCID 18001033, compound

Product 1

HCID 18001087HCID 18001087, compoundYield 100.6%

Reagents, catalysts & solvents 2

HCID 887MethanolSolventHCID 6344DichloromethaneSolvent

Procedure

7-Chloro-5-[(4-methyl-1-piperazinyl)carbonylmethyl]-1-{4-[2-(2-methylphenyl)acetyl]benzoyl}-2,3,4,5-tetrahydro-1H-benzazepine (2.06 g) is dissolved in a mixture of methylene chloride (20 ml) and methanol (20 ml), and thereto ia added with stirring sodium borohydride (0.28 g) under cooling over an ice-bath. The mixture is stirred for two hours over an ice-bath, and the mixture is evaporated to remove almost of the solvent. To the residue is added water, and the mixture is extracted with methylene chloride. The organic layer is washed with a saturated aqueous sodium chloride solution, dried over magnesium sulfate, and concentrated. The residue is purified by silica gel column chromatography (solvent; methylene chloride:methanol=20˜10:1) to give 7-chloro-5-[(4-methyl-1-piperazinyl)carbonylmethyl]-1-{4-[2-(2-methylphenyl)-1-hydroxyethyl]benzoyl}-2,3,4,5-tetrahydro-1H-benzazepine (2.08 g) as colorless amorphous.

Workup

  1. temperatureunder cooling over an ice-bath
  2. customthe mixture is evaporated
  3. customto remove almost of the solvent
  4. additionTo the residue is added water
  5. extractionthe mixture is extracted with methylene chloride
  6. washThe organic layer is washed with a saturated aqueous sodium chloride solution
  7. dry with materialdried over magnesium sulfate
  8. concentrationconcentrated
  9. customThe residue is purified by silica gel column chromatography (solvent; methylene chloride:methanol=20˜10:1)

Sources & evidence

ORD record
ord-4d659ee2ea4046018e1512ba844721f1
Source dataset
uspto-grants-2002_01
Patent number
US06335327B1

Reaction notes

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