Water → HCID 53641155, compound

HRID 1737644Notes

Reaction equation

HRID 1737644 reaction equation
[CH3:1][O:2][C:3]([C:5]1[S:6][CH:7]=[CH:8][C:9]=1[NH:10][S:11]([C:14]1[CH:19]=[CH:18][C:17]([O:20][CH3:21])=[CH:16][CH:15]=1)(=[O:13])=[O:12])=[O:4].[H-].[Na+].[CH2:24](Br)[C:25]1[CH:30]=[CH:29][CH:28]=[CH:27][CH:26]=1.O>CN(C=O)C>[CH3:1][O:2][C:3]([C:5]1[S:6][CH:7]=[CH:8][C:9]=1[N:10]([CH2:24][C:25]1[CH:30]=[CH:29][CH:28]=[CH:27][CH:26]=1)[S:11]([C:14]1[CH:19]=[CH:18][C:17]([O:20][CH3:21])=[CH:16][CH:15]=1)(=[O:13])=[O:12])=[O:4]

Participants

6

Reactant 4

HCID 962WaterHCID 7498Benzyl BromideHCID 24758Sodium hydrideHCID 868244HCID 868244, compound

Product 1

HCID 53641155HCID 53641155, compoundYield 65%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

To a solution of 2.0 g (6.116 mmol) of the product of Example 1 in 25 mL of DMF was added 0.257 g (6.422 mmol) of 60% sodium hydride. The resulting mixture was stirred for 30 min at room temperature and then 0.76 mL (6.422 mmol) of benzyl bromide was added. This reaction mixture was stirred overnight at room temperature, poured into water and then extracted with ether. The combined organics were washed with water and brine, dried over MgSO4, filtered and concentrated in vacuo. The residue was chromatographed on silica gel eluting with EtOAc/Hexanes (1:3) to provide 1.62 g (65%) of the desired product as white crystals. CI Mass Spec: 418 (M+H).

Workup

  1. stirringThis reaction mixture was stirred overnight at room temperature
  2. extractionextracted with ether
  3. washThe combined organics were washed with water and brine
  4. dry with materialdried over MgSO4
  5. filtrationfiltered
  6. concentrationconcentrated in vacuo
  7. customThe residue was chromatographed on silica gel eluting with EtOAc/Hexanes (1:3)

Sources & evidence

ORD record
ord-685c5b9d84bd4cf09f93d92cb019f8c5
Source dataset
uspto-grants-1999_10
Patent number
US05962481

Reaction notes

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