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4-Toluenesulfonyl chloride → N-(2-aminophenyl)-5-[(4-methylphenyl)sulfonyl]-4,5,6,7-tetrahydro[1,3]-thiazolo[5,4-c]pyridine-2-carboxamide

HRID 2093071
Notes
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Reaction equation

HRID 2093071 reaction equation
C(N(CC)CC)C.[NH2:8][C:9]1[CH:14]=[CH:13][CH:12]=[CH:11][C:10]=1[NH:15][C:16]([C:18]1[S:19][C:20]2[CH2:21][NH:22][CH2:23][CH2:24][C:25]=2[N:26]=1)=[O:17].[CH3:27][C:28]1[CH:33]=[CH:32][C:31]([S:34](Cl)(=[O:36])=[O:35])=[CH:30][CH:29]=1>C1COCC1>[NH2:8][C:9]1[CH:14]=[CH:13][CH:12]=[CH:11][C:10]=1[NH:15][C:16]([C:18]1[S:19][C:20]2[CH2:21][N:22]([S:34]([C:31]3[CH:32]=[CH:33][C:28]([CH3:27])=[CH:29][CH:30]=3)(=[O:36])=[O:35])[CH2:23][CH2:24][C:25]=2[N:26]=1)=[O:17]
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 3

HCID 73974-Toluenesulfonyl chlorideHCID 8471TriethylamineHCID 58117006N-(2-aminophenyl)-4,5,6,7-tetrahydro[1,3]thiazolo[5,4-c]pyridine-2-carboxamide

Product 1

HCID 25231102N-(2-aminophenyl)-5-[(4-methylphenyl)sulfonyl]-4,5,6,7-tetrahydro[1,3]-thiazolo[5,4-c]pyridine-2-carboxamide

Reagents, catalysts & solvents 1

HCID 8028
Tetrahydrofuran
Solvent

Conditions

Temperature
0 °C

Procedure

Triethyl amine (1.0 eq) was added to solution of N-(2-aminophenyl)-4,5,6,7-tetrahydro[1,3]thiazolo[5,4-c]pyridine-2-carboxamide obtained in step VIII of example I (1.0 mmol) in 10 mL THF. The solution was cooled to 0° C. 4-Methyl-benzenesulfonyl chloride (1.0 mmol) was added slowly with continuous stirring. Reaction mixture was brought to room temperature and stirred for 2 h Reaction mixture was concentrated, diluted with water, extracted dichloromethane, washed with brine solution, and dried over anhydrous Na2SO4. Concentrated and purified by column chromatography to yield the title compound.

Workup

  1. customReaction mixture
  2. customwas brought to room temperature
  3. customReaction mixture
  4. concentrationwas concentrated
  5. additiondiluted with water
  6. extractionextracted dichloromethane
  7. washwashed with brine solution
  8. dry with materialdried over anhydrous Na2SO4
  9. concentrationConcentrated
  10. custompurified by column chromatography

Sources & evidence

ORD record
ord-2b6a36a2e8c0433680e5e0eb97cf45a2
Source dataset
uspto-grants-2013_05
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US08440830B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes