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1-Hydroxybenzotriazole → 7-Methyl-5-{[6-(methylsulfonyl)pyridin-3-yl]oxy}-2-{5-[2-(1-oxidothiomorpholin-4-yl)-2-oxoethyl]-4,5-dihydro-1,3-thiazol-2-yl}-1H-indole

HRID 1042206
Notes
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Reaction equation

HRID 1042206 reaction equation
Cl.[NH:2]1[CH2:7][CH2:6][S:5](=[O:8])[CH2:4][CH2:3]1.[CH3:9][C:10]1[CH:11]=[C:12]([O:28][C:29]2[CH:30]=[N:31][C:32]([S:35]([CH3:38])(=[O:37])=[O:36])=[CH:33][CH:34]=2)[CH:13]=[C:14]2[C:18]=1[NH:17][C:16]([C:19]1[S:20][CH:21]([CH2:24][C:25](O)=[O:26])[CH2:22][N:23]=1)=[CH:15]2.ON1C2C=CC=CC=2N=N1.Cl.C(N=C=NCCCN(C)C)C>CN(C)C=O.O.C(N(CC)CC)C>[CH3:9][C:10]1[CH:11]=[C:12]([O:28][C:29]2[CH:30]=[N:31][C:32]([S:35]([CH3:38])(=[O:37])=[O:36])=[CH:33][CH:34]=2)[CH:13]=[C:14]2[C:18]=1[NH:17][C:16]([C:19]1[S:20][CH:21]([CH2:24][C:25]([N:2]3[CH2:7][CH2:6][S:5](=[O:8])[CH2:4][CH2:3]3)=[O:26])[CH2:22][N:23]=1)=[CH:15]2
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

8

Reactant 4

HCID 757711-HydroxybenzotriazoleHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 204414791Lambda4-thiomorpholin-1-one hydrochlorideHCID 58081062[2-(7-Methyl-5-{[6-(methylsulfonyl)pyridin-3-yl]oxy}-1H-indol-2-yl)-4,5-dihydro-1,3-thiazol-5-yl]acetic acid

Product 1

HCID 58081038
7-Methyl-5-{[6-(methylsulfonyl)pyridin-3-yl]oxy}-2-{5-[2-(1-oxidothiomorpholin-4-yl)-2-oxoethyl]-4,5-dihydro-1,3-thiazol-2-yl}-1H-indole
Yield 42.4%

Reagents, catalysts & solvents 3

HCID 962WaterSolventHCID 6228DimethylformamideSolventHCID 8471TriethylamineSolvent

Procedure

To a solution of thiomorpholine 1-oxide hydrochloride (140 mg) and triethylamine (0.125 mL) in N,N-dimethylformamide (15 mL) were added [2-(7-methyl-5-{[6-(methylsulfonyl)pyridin-3-yl]oxy}-1H-indol-2-yl)-4,5-dihydro-1,3-thiazol-5-yl]acetic acid (200 mg), 1-hydroxybenzotriazole (121 mg) and 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride (172 mg) under ice-cooling, and the mixture was stirred under ice-cooling and then at room temperature for 15 hr. Water was added to the reaction solution, and the mixture was extracted with ethyl acetate. The organic layer was washed with aqueous sodium hydrogen carbonate solution and saturated brine, dried over magnesium sulfate, filtered and concentrated under reduced pressure. The obtained residue was subjected to silica gel column chromatography (ethyl acetate:methanol=100:0 to 75:25, volume ratio), and the obtained pale-yellow crystals were recrystallized from ethyl acetate-hexane to give the title compound (104 mg, yield 42%) as colorless crystals.

Workup

  1. temperaturecooling
  2. temperaturecooling
  3. extractionthe mixture was extracted with ethyl acetate
  4. washThe organic layer was washed with aqueous sodium hydrogen carbonate solution and saturated brine
  5. dry with materialdried over magnesium sulfate
  6. filtrationfiltered
  7. concentrationconcentrated under reduced pressure
  8. customthe obtained pale-yellow crystals were recrystallized from ethyl acetate-hexane

Sources & evidence

ORD record
ord-091d881f06124435b42c8fe22d76f940
Source dataset
uspto-grants-2013_10
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08557805B2

Reaction notes

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