Water → HCID 68776944, compound

HRID 2263024Notes

Reaction equation

HRID 2263024 reaction equation
[N:1]1[CH:6]=[CH:5][CH:4]=[C:3]([NH:7][C:8](=[O:15])OCC(Cl)(Cl)Cl)[CH:2]=1.[S:16]1[CH:20]=[CH:19][CH:18]=[C:17]1[C:21]1[N:25]=[C:24]([N:26]2[CH2:31][CH2:30][NH:29][CH2:28][CH2:27]2)[S:23][N:22]=1.C(N(C(C)C)CC)(C)C.O>CS(C)=O>[N:1]1[CH:6]=[CH:5][CH:4]=[C:3]([NH:7][C:8]([N:29]2[CH2:28][CH2:27][N:26]([C:24]3[S:23][N:22]=[C:21]([C:17]4[S:16][CH:20]=[CH:19][CH:18]=4)[N:25]=3)[CH2:31][CH2:30]2)=[O:15])[CH:2]=1

Participants

6

Reactant 4

HCID 962WaterHCID 81531DiisopropylethylamineHCID 685753802,2,2-Trichloroethyl pyridin-3-ylcarbamateHCID 68778015HCID 68778015, compound

Product 1

HCID 68776944HCID 68776944, compoundYield 37.1%

Reagents, catalysts & solvents 1

HCID 679Dimethyl SulfoxideSolvent

Procedure

A mixed solution of 2,2,2-trichloroethyl pyridin-3-ylcarbamate (235 mg, 0.872 mmol), 1-[3-(2-thienyl)-1,2,4-thiadiazol-5-yl]piperazine (200 mg, 0.793 mmol) and diisopropylethylamine (0.152 ml, 0.872 mmol) in dimethyl sulfoxide (2.5 ml) was stirred at 80° 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 the solvent was distilled off under reduced pressure. The residue was purified by silica gel column chromatography (ethyl acetate) and recrystallized from a mixed solvent of hexane and tetrahydrofuran to give 109 mg (37.1%) 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. distillationthe solvent was distilled off under reduced pressure
  4. customThe residue was purified by silica gel column chromatography (ethyl acetate)
  5. customrecrystallized from a mixed solvent of hexane and tetrahydrofuran

Sources & evidence

ORD record
ord-17325971e4644a15a710db0b7f31361b
Source dataset
uspto-grants-2010_12
Patent number
US07851473B2

Reaction notes

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