Water → HCID 68776951, compound

HRID 2262973Notes

Reaction equation

HRID 2262973 reaction equation
[NH:1]1[C:9]2[C:4](=[CH:5][CH:6]=[CH:7][CH:8]=2)[C:3]([N:10]([C:19]([O:21]CC(Cl)(Cl)Cl)=O)C(OCC(Cl)(Cl)Cl)=O)=[N:2]1.[C:27]1([C:33]2[N:37]=[C:36]([N:38]3[CH2:43][CH2:42][NH:41][CH2:40][CH2:39]3)[S:35][N:34]=2)[CH:32]=[CH:31][CH:30]=[CH:29][CH:28]=1.C(N(C(C)C)CC)(C)C.O>CS(C)=O>[NH:1]1[C:9]2[C:4](=[CH:5][CH:6]=[CH:7][CH:8]=2)[C:3]([NH:10][C:19]([N:41]2[CH2:42][CH2:43][N:38]([C:36]3[S:35][N:34]=[C:33]([C:27]4[CH:32]=[CH:31][CH:30]=[CH:29][CH:28]=4)[N:37]=3)[CH2:39][CH2:40]2)=[O:21])=[N:2]1

Participants

6

Reactant 4

HCID 962WaterHCID 81531DiisopropylethylamineHCID 27777601-(3-Phenyl-(1,2,4)thiadiazol-5-yl)-piperazineHCID 86625482HCID 86625482, compound

Product 1

HCID 68776951HCID 68776951, compoundYield 12.2%

Reagents, catalysts & solvents 1

HCID 679Dimethyl SulfoxideSolvent

Procedure

A mixed solution of bis(2,2,2-trichloroethyl) 1H-indazol-3-ylimidodicarbonate (295 mg, 0.61 mmol), 1-(3-phenyl-1,2,4-thiadiazol-5-yl)piperazine (300 mg, 1.22 mmol) and diisopropylethylamine (0.106 ml, 0.610 mmol) in dimethyl sulfoxide (2.5 ml) was stirred at 80° C. for 5 hours. 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 silica gel column chromatography (100% ethyl acetate, followed by ethyl acetate:methanol=1:1) and recrystallized from a mixed solvent of hexane and tetrahydrofuran to give 30.2 mg (12.2%) 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 silica gel column chromatography (100% ethyl acetate, followed by ethyl acetate:methanol=1:1)
  6. customrecrystallized from a mixed solvent of hexane and tetrahydrofuran

Sources & evidence

ORD record
ord-50f4208900f44522bc1f07738ae4758a
Source dataset
uspto-grants-2010_12
Patent number
US07851473B2

Reaction notes

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