Water → HCID 68777362, compound

HRID 2263017Notes

Reaction equation

HRID 2263017 reaction equation
[CH3:1][C:2]1[CH:6]=[C:5]([NH:7][C:8](=[O:15])OCC(Cl)(Cl)Cl)[O:4][N:3]=1.[C:16]1([C:22]2[N:26]=[C:25]([N:27]3[CH2:32][CH2:31][NH:30][CH2:29][CH2:28]3)[S:24][N:23]=2)[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=1.C(N(C(C)C)CC)(C)C.O>CS(C)=O>[CH3:1][C:2]1[CH:6]=[C:5]([NH:7][C:8]([N:30]2[CH2:31][CH2:32][N:27]([C:25]3[S:24][N:23]=[C:22]([C:16]4[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=4)[N:26]=3)[CH2:28][CH2:29]2)=[O:15])[O:4][N:3]=1

Participants

6

Reactant 4

HCID 962WaterHCID 81531DiisopropylethylamineHCID 27777601-(3-Phenyl-(1,2,4)thiadiazol-5-yl)-piperazineHCID 69015958HCID 69015958, compound

Product 1

HCID 68777362HCID 68777362, compoundYield 40.6%

Reagents, catalysts & solvents 1

HCID 679Dimethyl SulfoxideSolvent

Procedure

A mixed solution of 2,2,2-trichloroethyl (3-methylisoxazol-5-yl)carbamate (302 mg, 1.11 mmol), 1-(3-phenyl-1,2,4-thiadiazol-5-yl)piperazine (300 mg, 1.33 mmol) and diisopropylethylamine (0.212 ml, 1.33 mmol) in dimethyl sulfoxide (3.7 ml) was stirred at 70° C. for 3 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 (hexane:ethyl acetate=1:1) and recrystallized from a mixed solvent of hexane and tetrahydrofuran to give 167 mg (40.6%) 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 (hexane:ethyl acetate=1:1)
  6. customrecrystallized from a mixed solvent of hexane and tetrahydrofuran

Sources & evidence

ORD record
ord-672ddd0bcbbe4181b12deb16e8ad1576
Source dataset
uspto-grants-2010_12
Patent number
US07851473B2

Reaction notes

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