Water → HCID 86625490, compound

HRID 2263049Notes

Reaction equation

HRID 2263049 reaction equation
ClC(Cl)(Cl)CO[C:5]([NH:7][CH:8]1[CH2:13][CH2:12][CH2:11][N:10]([C:14]([O:16][C:17]([CH3:20])([CH3:19])[CH3:18])=[O:15])[CH2:9]1)=[O:6].[C:23]1([C:29]2[N:33]=[C:32]([N:34]3[CH2:39][CH2:38][NH:37][CH2:36][CH2:35]3)[S:31][N:30]=2)[CH:28]=[CH:27][CH:26]=[CH:25][CH:24]=1.C(N(C(C)C)CC)(C)C.O>CS(C)=O>[C:23]1([C:29]2[N:33]=[C:32]([N:34]3[CH2:39][CH2:38][N:37]([C:5]([NH:7][CH:8]4[CH2:13][CH2:12][CH2:11][N:10]([C:14]([O:16][C:17]([CH3:18])([CH3:19])[CH3:20])=[O:15])[CH2:9]4)=[O:6])[CH2:36][CH2:35]3)[S:31][N:30]=2)[CH:24]=[CH:25][CH:26]=[CH:27][CH:28]=1

Participants

6

Reactant 4

HCID 962WaterHCID 81531DiisopropylethylamineHCID 27777601-(3-Phenyl-(1,2,4)thiadiazol-5-yl)-piperazineHCID 68776240HCID 68776240, compound

Product 1

HCID 86625490HCID 86625490, compoundYield 13%

Reagents, catalysts & solvents 1

HCID 679Dimethyl SulfoxideSolvent

Procedure

A mixed solution of tert-butyl 3-{[(2,2,2-trichloroethoxy)carbonyl]amino}piperidine-1-carboxylate (555 mg, 1.48 mmol), 1-(3-phenyl-1,2,4-thiadiazol-5-yl)piperazine (400 mg, 1.62 mmol) and diisopropylethylamine (0.257 ml, 1.48 mmol) in dimethyl sulfoxide (4.9 ml) was stirred at 70° C. for 4 days. 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 (ethyl acetate) and recrystallized from a mixed solvent of hexane and ethyl acetate to give 90.9 mg (13.0%) 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 silica gel column chromatography (ethyl acetate)
  6. customrecrystallized from a mixed solvent of hexane and ethyl acetate

Sources & evidence

ORD record
ord-dc8d36529d9443ea8e3a54a450f91d19
Source dataset
uspto-grants-2010_12
Patent number
US07851473B2

Reaction notes

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