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Dimethylformamide → 2-(2-{4-methyl-7-[methyl(2-thienylsulfonyl)amino]-1H-indol-2-yl}-4,5-dihydro-1,3-thiazol-5-yl)acetamide

HRID 1960476
Notes
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Reaction equation

HRID 1960476 reaction equation
[CH3:1][C:2]1[CH:10]=[CH:9][C:8]([N:11]([CH3:20])[S:12]([C:15]2[S:16][CH:17]=[CH:18][CH:19]=2)(=[O:14])=[O:13])=[C:7]2[C:3]=1[CH:4]=[C:5]([C:21]1[S:22][CH:23]([CH2:26][C:27]([OH:29])=O)[CH2:24][N:25]=1)[NH:6]2.C[N:31](C)C=O.Cl.CN(C)CCCN=C=NCC>C(OCC)(=O)C>[CH3:1][C:2]1[CH:10]=[CH:9][C:8]([N:11]([CH3:20])[S:12]([C:15]2[S:16][CH:17]=[CH:18][CH:19]=2)(=[O:13])=[O:14])=[C:7]2[C:3]=1[CH:4]=[C:5]([C:21]1[S:22][CH:23]([CH2:26][C:27]([NH2:31])=[O:29])[CH2:24][N:25]=1)[NH:6]2
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 3

HCID 6228DimethylformamideHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 59136105(2-{4-methyl-7-[methyl(2-thienylsulfonyl)amino]-1H-indol-2-yl}-4,5-dihydro-1,3-thiazol-5-yl)acetic acid

Product 1

HCID 591359892-(2-{4-methyl-7-[methyl(2-thienylsulfonyl)amino]-1H-indol-2-yl}-4,5-dihydro-1,3-thiazol-5-yl)acetamideYield 92%

Reagents, catalysts & solvents

1
HCID 8857Ethyl AcetateSolvent

Procedure

To a mixture of (2-{4-methyl-7-[methyl(2-thienylsulfonyl)amino]-1H-indol-2-yl}-4,5-dihydro-1,3-thiazol-5-yl)acetic acid (0.25 g), 1H-1,2,3-benzotriazol-1-ol-ammonia complex (0.11 g) and N,N-dimethylformamide (15 mL) was added N-[3-(dimethylamino)propyl]-N′-ethylcarbodiimide hydrochloride (0.14 g) under ice-cooling, and the mixture was stirred from under ice-cooling to room temperature for 2 days. The reaction solution was diluted with ethyl acetate, washed with water, aqueous sodium hydrogencarbonate solution and saturated brine, dried over anhydrous magnesium sulfate, and concentrated under reduced pressure. The obtained residue was subjected to silica gel column chromatography (ethyl acetate:hexane=9:1-10:0), and the obtained colorless oil was crystallized from ethyl acetate-hexane to give the title compound (228 mg, yield: 92%) as colorless crystals. MS:449(MH+), melting point 120-121° C.

Workup

  1. temperaturecooling
  2. washwashed with water, aqueous sodium hydrogencarbonate solution and saturated brine
  3. dry with materialdried over anhydrous magnesium sulfate
  4. concentrationconcentrated under reduced pressure
  5. customthe obtained colorless oil was crystallized from ethyl acetate-hexane

Sources & evidence

ORD record
ord-25d268051b6943418c9a9708eb0567e7
Source dataset
uspto-grants-2013_04
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08410087B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes