Cesium carbonate → 4-(3-Chloro-phenyl)-2-{6-[3-(4-methyl-piperazin-1-yl)-propoxy]-benzoimidazol-1-yl}-thiazole-5-carboxylic acid amide

HRID 1667748Notes

Reaction equation

HRID 1667748 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]([C:8]2[N:9]=[C:10]([N:16]3[C:20]4[CH:21]=[C:22]([OH:25])[CH:23]=[CH:24][C:19]=4[N:18]=[CH:17]3)[S:11][C:12]=2[C:13]([NH2:15])=[O:14])[CH:5]=[CH:6][CH:7]=1.[CH3:26][N:27]1[CH2:32][CH2:31][N:30]([CH2:33][CH2:34][CH2:35]OS(C2C=CC(C)=CC=2)(=O)=O)[CH2:29][CH2:28]1.C(=O)([O-])[O-].[Cs+].[Cs+]>CN(C)C=O>[Cl:1][C:2]1[CH:3]=[C:4]([C:8]2[N:9]=[C:10]([N:16]3[C:20]4[CH:21]=[C:22]([O:25][CH2:35][CH2:34][CH2:33][N:30]5[CH2:31][CH2:32][N:27]([CH3:26])[CH2:28][CH2:29]5)[CH:23]=[CH:24][C:19]=4[N:18]=[CH:17]3)[S:11][C:12]=2[C:13]([NH2:15])=[O:14])[CH:5]=[CH:6][CH:7]=1

Participants

5

Reactant 3

HCID 10796Cesium carbonateHCID 218748183-(4-Methyl-piperazin-1-yl)propyl-4-toluene sulphonateHCID 674454984-(3-Chloro-phenyl)-2-(6-hydroxy-benzoimidazol-1-yl)-thiazole-5-carboxylic acid amide

Product 1

HCID 468317674-(3-Chloro-phenyl)-2-{6-[3-(4-methyl-piperazin-1-yl)-propoxy]-benzoimidazol-1-yl}-thiazole-5-carboxylic acid amideYield 48.9%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

A mixture of 0.037 g (0.1 mmole) of 4-(3-chloro-phenyl)-2-(6-hydroxy-benzoimidazol-1-yl)-thiazole-5-carboxylic acid amide (I.25d), 0.062 g (0.2 mmole) of toluene-4-sulfonic acid 3-(4-methyl-piperazin-1-yl)-propyl ester, 1 mL of dimethylformamide and 0.160 g (0.5 mmole) of cesium carbonate was heated at 100 degrees for 20 minutes. The mixture was cooled, the solid was removed by filtration and the filtrate purified by reverse phase silica gel chromatography, eluting with acetonitrile-water (gradient 40:60-100:0) to give 0.025 g of 4-(3-chloro-phenyl)-2-{6-[3-(4-methyl-piperazin-1-yl)-propoxy]-benzoimidazol-1-yl}-thiazole-5-carboxylic acid amide (I.33) as a white powder. MH+/Z=511

Workup

  1. temperaturewas heated at 100 degrees for 20 minutes
  2. temperatureThe mixture was cooled
  3. customthe solid was removed by filtration
  4. customthe filtrate purified by reverse phase silica gel chromatography
  5. washeluting with acetonitrile-water (gradient 40:60-100:0)

Sources & evidence

ORD record
ord-375fa9feb7384071866f09b4950f3e79
Source dataset
uspto-grants-2011_10
Patent number
US08044213B2

Reaction notes

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