Water → HCID 178521824, compound

HRID 2263040Notes

Reaction equation

HRID 2263040 reaction equation
[NH:1]1[C:5]2[CH:6]=[CH:7][C:8]([NH:10][C:11](=[O:18])OCC(Cl)(Cl)Cl)=[CH:9][C:4]=2[N:3]=[CH:2]1.[C:19]1([C:25]2[N:29]=[C:28]([N:30]3[CH2:35][CH2:34][NH:33][CH2:32][CH2:31]3)[S:27][N:26]=2)[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=1.C(N(C(C)C)CC)(C)C.O>CS(C)=O>[NH:1]1[C:5]2[CH:6]=[CH:7][C:8]([NH:10][C:11]([N:33]3[CH2:34][CH2:35][N:30]([C:28]4[S:27][N:26]=[C:25]([C:19]5[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=5)[N:29]=4)[CH2:31][CH2:32]3)=[O:18])=[CH:9][C:4]=2[N:3]=[CH:2]1

Participants

6

Reactant 4

HCID 962WaterHCID 81531DiisopropylethylamineHCID 27777601-(3-Phenyl-(1,2,4)thiadiazol-5-yl)-piperazineHCID 178521825HCID 178521825, compound

Product 1

HCID 178521824HCID 178521824, compoundYield 5%

Reagents, catalysts & solvents 1

HCID 679Dimethyl SulfoxideSolvent

Procedure

A mixed solution of 2,2,2-trichloroethyl 1H-benzimidazol-5-ylcarbamate (313 mg, 1.01 mmol), 1-(3-phenyl-1,2,4-thiadiazol-5-yl)piperazine (300 mg, 1.22 mmol) and diisopropylethylamine (0.212 ml, 1.22 mmol) in dimethyl sulfoxide (2.5 ml) was stirred at 70° C. for 1 day. Water was poured to the reaction mixture, and the resulting solution was extracted with ethyl acetate. The extract was washed with water and dried over anhydrous magnesium sulfate, and the solvent was distilled off under reduced pressure. The residue was purified by high performance liquid chromatography (YMC HPLC Column eluted with 10% to 100% Liquid A; Liquid A: a 0.1% solution of trifluoroacetic acid in acetonitrile; Liquid B: an aqueous 0.1% trifluoroacetic acid solution) and recrystallized from a mixed solvent of hexane and tetrahydrofuran to give 20.2 mg (5.0%) of the desired product as a solid.

Workup

  1. extractionthe resulting solution was extracted with ethyl acetate
  2. washThe extract was washed with water
  3. dry with materialdried over anhydrous magnesium sulfate
  4. distillationthe solvent was distilled off under reduced pressure
  5. customThe residue was purified by high performance liquid chromatography (YMC HPLC Column
  6. washeluted with 10% to 100% Liquid A
  7. customLiquid B: an aqueous 0.1% trifluoroacetic acid solution) and recrystallized from a mixed solvent of hexane and tetrahydrofuran

Sources & evidence

ORD record
ord-9a2fc59223964368bbf89c82eeb0b6a7
Source dataset
uspto-grants-2010_12
Patent number
US07851473B2

Reaction notes

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