Water → HCID 68777272, compound

HRID 2262964Notes

Reaction equation

HRID 2262964 reaction equation
[N:1]1([C:7]2[O:11][C:10]([NH:12][C:13](=[O:20])OCC(Cl)(Cl)Cl)=[N:9][N:8]=2)[CH2:6][CH2:5][O:4][CH2:3][CH2:2]1.[C:21]1([C:27]2[N:31]=[C:30]([N:32]3[CH2:37][CH2:36][NH:35][CH2:34][CH2:33]3)[S:29][N:28]=2)[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=1.C(N(C(C)C)CC)(C)C.O>CS(C)=O>[N:1]1([C:7]2[O:11][C:10]([NH:12][C:13]([N:35]3[CH2:36][CH2:37][N:32]([C:30]4[S:29][N:28]=[C:27]([C:21]5[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=5)[N:31]=4)[CH2:33][CH2:34]3)=[O:20])=[N:9][N:8]=2)[CH2:2][CH2:3][O:4][CH2:5][CH2:6]1

Participants

6

Reactant 4

HCID 962WaterHCID 81531DiisopropylethylamineHCID 27777601-(3-Phenyl-(1,2,4)thiadiazol-5-yl)-piperazineHCID 86625481HCID 86625481, compound

Product 1

HCID 68777272HCID 68777272, compoundYield 9%

Reagents, catalysts & solvents 1

HCID 679Dimethyl SulfoxideSolvent

Procedure

A mixed solution of 2,2,2-trichloroethyl (5-morpholin-4-yl-1,3,4-oxadiazol-2-yl)carbamate (269 mg, 0.777 mmol), 1-(3-phenyl-1,2,4-thiadiazol-5-yl)piperazine (211 mg, 0.854 mmol) and diisopropylethylamine (0.149 ml, 0.854 mmol) in dimethyl sulfoxide (2.5 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 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 31 mg (9.0%) 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-231493dcfd3d49a0ae60a690e657a2bf
Source dataset
uspto-grants-2010_12
Patent number
US07851473B2

Reaction notes

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