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Water → N-methyl-N-{2-[5-(2-oxoethyl)-4,5-dihydro-1,3-thiazol-2-yl]-1H-indol-7-yl)thiophene-2-sulfonamide

HRID 504930
Notes
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Reaction equation

HRID 504930 reaction equation
[OH:1][CH2:2][CH2:3][CH:4]1[S:8][C:7]([C:9]2[NH:10][C:11]3[C:16]([CH:17]=2)=[CH:15][CH:14]=[CH:13][C:12]=3[N:18]([CH3:27])[S:19]([C:22]2[S:23][CH:24]=[CH:25][CH:26]=2)(=[O:21])=[O:20])=[N:6][CH2:5]1.CC(OI1(OC(C)=O)(OC(C)=O)OC(=O)C2C=CC=CC1=2)=O.O>C(#N)C>[CH3:27][N:18]([C:12]1[CH:13]=[CH:14][CH:15]=[C:16]2[C:11]=1[NH:10][C:9]([C:7]1[S:8][CH:4]([CH2:3][CH:2]=[O:1])[CH2:5][N:6]=1)=[CH:17]2)[S:19]([C:22]1[S:23][CH:24]=[CH:25][CH:26]=1)(=[O:20])=[O:21]
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 3

HCID 962WaterHCID 159087TriacetoxyperiodinaneHCID 57476293N-{2-[5-(2-hydroxyethyl)-4,5-dihydro-1,3-thiazol-2-yl]-1H-indol-7-yl}-N-methylthiophene-2-sulfonamide

Product 1

HCID 57476377N-methyl-N-{2-[5-(2-oxoethyl)-4,5-dihydro-1,3-thiazol-2-yl]-1H-indol-7-yl)thiophene-2-sulfonamideYield 22%

Reagents, catalysts & solvents 1

HCID 6342
Acetonitrile
Solvent

Conditions

Temperature
70 °C

Procedure

To a solution of N-{2-[5-(2-hydroxyethyl)-4,5-dihydro-1,3-thiazol-2-yl]-1H-indol-7-yl}-N-methylthiophene-2-sulfonamide (2.78 g) in acetonitrile (150 mL) was added Dess-Martin reagent (3 g), and the mixture was stirred under heating at 70° C. for 30 min. The reaction mixture was allowed to cool to room temperature, water was added, and the mixture was extracted with ethyl acetate. The ethyl acetate layer was washed with saturated brine, dried (MgSO4), and concentrated. The obtained residue was subjected to silica gel column chromatography to give the title compound (27 mg, yield 22%) as a brown amorphous solid from a fraction eluted with ethyl acetate:hexane=25:75. MS: 420 (MH+).

Workup

  1. temperatureto cool to room temperature
  2. extractionthe mixture was extracted with ethyl acetate
  3. washThe ethyl acetate layer was washed with saturated brine
  4. dry with materialdried (MgSO4)
  5. concentrationconcentrated

Sources & evidence

ORD record
ord-9778cfddaa39465fa655ff6864f1cd45
Source dataset
uspto-grants-2010_08
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US07777047B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes