Trifluoroacetic acid → HCID 19972885, compound

HRID 2260650Notes

Reaction equation

HRID 2260650 reaction equation
[C:1]1([S:11]([NH:14][CH2:15][CH2:16][O:17][CH:18]2[CH2:23][CH2:22][CH2:21][CH2:20][C:19]2([C:37]2[CH:38]=[CH:39][C:40]3[N:41]([CH:43]=[CH:44][N:45]=3)[CH:42]=2)[C:24]([S:27]CC2C=CC(OC)=CC=2)=[N:25][CH3:26])(=[O:13])=[O:12])[C:10]2[C:5](=[CH:6][CH:7]=[CH:8][CH:9]=2)[CH:4]=[CH:3][CH:2]=1.C1(OC)C=CC=CC=1.FC(F)(F)C(O)=O.C(=O)([O-])[O-].[Na+].[Na+]>ClCCl>[C:1]1([S:11]([NH:14][CH2:15][CH2:16][O:17][CH:18]2[CH2:23][CH2:22][CH2:21][CH2:20][C:19]2([C:37]2[CH:38]=[CH:39][C:40]3[N:41]([CH:43]=[CH:44][N:45]=3)[CH:42]=2)[C:24](=[S:27])[NH:25][CH3:26])(=[O:12])=[O:13])[C:10]2[C:5](=[CH:6][CH:7]=[CH:8][CH:9]=2)[CH:4]=[CH:3][CH:2]=1

Participants

6

Reactant 4

HCID 6422Trifluoroacetic acidHCID 7519AnisoleHCID 10340Sodium CarbonateHCID 19972903HCID 19972903, compound

Product 1

HCID 19972885HCID 19972885, compoundYield 65%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

A mixture comprising 0.4 g of the 2-(2-(1-naphthalenesulfonamido)ethoxy)-1-(imidazo[1,2-a]-pyridin-6-yl)-1-((4-methoxybenzylthio)(methylimino)methyl)cyclohexane, 0.5 ml of anisole, 5 ml of trifluoroacetic acid and 5 ml of dichloromethane was stirred under cooling with ice for 1.5 hours, followed by the addition of ice-water. The resulting mixture was alkalinized with sodium carbonate and extracted with chloroform. The chloroform phase was dried over anhydrous magnesium sulfate and ditilled to remove the solvent. The residue was purified by silica gel column chromatography (solvent:a 30:1 dichloromethane/methanol mixture) and crystallized from ethyl acetate/n-hexane to give 0.21 g of the title compound as a white powder (yield: 65%).

Workup

  1. temperatureunder cooling with ice for 1.5 hours
  2. extractionextracted with chloroform
  3. dry with materialThe chloroform phase was dried over anhydrous magnesium sulfate
  4. customto remove the solvent
  5. customThe residue was purified by silica gel column chromatography (solvent
  6. customa 30:1 dichloromethane/methanol mixture) and crystallized from ethyl acetate/n-hexane

Sources & evidence

ORD record
ord-c61ece50250c41bfbebaf646d5d4c3f3
Source dataset
uspto-grants-1995_12
Patent number
US05478839

Reaction notes

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