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Water → 5-(1-Methylpiperazin-4-yl)methylene-3-[4-(imidazo[1,2-a]pyridin-5-ylthio)butyl]thiazolidine-2,4-dione

HRID 357085
Notes
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Reaction equation

HRID 357085 reaction equation
Cl[CH2:2][CH2:3][CH2:4][CH2:5][S:6][C:7]1[N:12]2[CH:13]=[CH:14][N:15]=[C:11]2[CH:10]=[CH:9][CH:8]=1.[CH3:16][N:17]1[CH2:22][CH2:21][N:20]([CH:23]=[C:24]2[S:28][C:27](=[O:29])[NH:26][C:25]2=[O:30])[CH2:19][CH2:18]1.C1CCN2C(=NCCC2)CC1.O>CN(C)C=O>[CH3:16][N:17]1[CH2:22][CH2:21][N:20]([CH:23]=[C:24]2[S:28][C:27](=[O:29])[N:26]([CH2:2][CH2:3][CH2:4][CH2:5][S:6][C:7]3[N:12]4[CH:13]=[CH:14][N:15]=[C:11]4[CH:10]=[CH:9][CH:8]=3)[C:25]2=[O:30])[CH2:19][CH2:18]1
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

6

Reactant 4

HCID 962WaterHCID 811841,8-Diazabicyclo(5.4.0)undec-7-eneHCID 18936641Imidazo[1,2-a]pyridine,5-[(4-chlorobutyl)thio]-HCID 536506415-(1-Methylpiperazin-4-yl)methylene-thiazolidine-2,4-dione

Product 1

HCID 538972405-(1-Methylpiperazin-4-yl)methylene-3-[4-(imidazo[1,2-a]pyridin-5-ylthio)butyl]thiazolidine-2,4-dione

Reagents, catalysts & solvents

1
HCID 6228DimethylformamideSolvent

Conditions

Temperature
80 °C

Procedure

To a solution of 241 mg (1.0 mmol) of 5-(4-chlorobutylthio)imidazo[1,2-a]pyridine and 227 mg (1.0 mmol) of 5-(1-methylpiperazin-4-yl)methylene-thiazolidine-2,4-dione in 10 ml of N,N-dimethylformamide, 0.15 ml (1.0 mmol) of 1,8-diazabicyclo[5.4.0]-7-undecene was added, followed by stirring at 80° C. for 3 hours. After the reaction mixture was cooled, water was added; the mixture was extracted with ethyl acetate and dried, after which the solvent was distilled off. The residue was purified by column chromatography (eluent, chloroform/ethanol=50/1) to yield 330 mg (76.0%, light yellow oily substance) of the desired product.

Workup

  1. temperatureAfter the reaction mixture was cooled
  2. extractionthe mixture was extracted with ethyl acetate
  3. customdried
  4. distillationafter which the solvent was distilled off
  5. customThe residue was purified by column chromatography (eluent, chloroform/ethanol=50/1)

Sources & evidence

ORD record
ord-1e9dc5af16e24c488b1091bd6fc6c67b
Source dataset
uspto-grants-1998_11
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US05840732

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes