Hydroxyamine hydrochloride → HCID 86754506, compound

HRID 378735Notes

Reaction equation

HRID 378735 reaction equation
[CH:1]([CH2:3][N:4]1[C:12]2[C:7](=[CH:8][CH:9]=[CH:10][CH:11]=2)[C:6]([CH2:24][C:25]([NH:27][C:28]2[CH:33]=[CH:32][C:31]([CH3:34])=[CH:30][CH:29]=2)=[O:26])([NH:13][C:14]([NH:16][C:17]2[CH:22]=[CH:21][C:20]([CH3:23])=[CH:19][CH:18]=2)=[O:15])[C:5]1=[O:35])=O.Cl.[NH2:37][OH:38].C([O-])(=O)C.[Na+]>CO.O>[OH:38][N:37]=[CH:1][CH2:3][N:4]1[C:12]2[C:7](=[CH:8][CH:9]=[CH:10][CH:11]=2)[C:6]([CH2:24][C:25]([NH:27][C:28]2[CH:29]=[CH:30][C:31]([CH3:34])=[CH:32][CH:33]=2)=[O:26])([NH:13][C:14]([NH:16][C:17]2[CH:22]=[CH:21][C:20]([CH3:23])=[CH:19][CH:18]=2)=[O:15])[C:5]1=[O:35]

Participants

6

Reactant 3

HCID 443297Hydroxyamine hydrochlorideHCID 517045Sodium AcetateHCID 18373415HCID 18373415, compound

Product 1

HCID 86754506HCID 86754506, compoundYield 87.2%

Reagents, catalysts & solvents 2

HCID 887MethanolSolventHCID 962WaterSolvent

Procedure

In 1 ml of methanol was dissolved 0.050 g of (+)-1-formylmethyl-3-(4-methylphenyl)aminocarbonylmethyl-3-(N'-(4-methylphenyl)ureido)indolin-2-one, and a solution of 0.021 g of hydroxylamine hydrochloride and 0.021 g of sodium acetate in 1 ml of water was added thereto. The resulting mixture was stirred at room temperature for 1 hour and concentrated. Water was added to the residue, and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated aqueous sodium hydrogencarbonate, dried over anhydrous sodium sulfate, and concentrated. The residue was purified by silica gel column chromatography (dichloromethane/ethyl acetate=1/1) to give 0.045 g of the title compound.

Workup

  1. concentrationconcentrated
  2. additionWater was added to the residue
  3. extractionthe mixture was extracted with ethyl acetate
  4. washThe organic layer was washed with saturated aqueous sodium hydrogencarbonate
  5. dry with materialdried over anhydrous sodium sulfate
  6. concentrationconcentrated
  7. customThe residue was purified by silica gel column chromatography (dichloromethane/ethyl acetate=1/1)

Sources & evidence

ORD record
ord-9d8c7346a9464361be2c0f404a1c6e39
Source dataset
uspto-grants-2000_02
Patent number
US06031111

Reaction notes

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