Potassium ethanethioate → HCID 86590879, compound

HRID 891732Notes

Reaction equation

HRID 891732 reaction equation
CS(O[CH:6]1[CH2:9][N:8]([C:10]2[S:11][CH:12]=[C:13]([C:15](=[O:35])[NH:16][C@@H:17]3[CH2:21][CH2:20][N:19]([C:22]([O:24][CH2:25][C:26]4[CH:31]=[CH:30][C:29]([N+:32]([O-:34])=[O:33])=[CH:28][CH:27]=4)=[O:23])[CH2:18]3)[N:14]=2)[CH2:7]1)(=O)=O.[C:36]([O-:39])(=[S:38])[CH3:37].[K+]>CN(C)C=O>[C:36]([S:38][CH:6]1[CH2:7][N:8]([C:10]2[S:11][CH:12]=[C:13]([C:15](=[O:35])[NH:16][C@@H:17]3[CH2:21][CH2:20][N:19]([C:22]([O:24][CH2:25][C:26]4[CH:31]=[CH:30][C:29]([N+:32]([O-:34])=[O:33])=[CH:28][CH:27]=4)=[O:23])[CH2:18]3)[N:14]=2)[CH2:9]1)(=[O:39])[CH3:37]

Participants

4

Reactant 2

HCID 23670855Potassium ethanethioateHCID 86590878HCID 86590878, compound

Product 1

HCID 86590879HCID 86590879, compoundYield 69.3%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Conditions

Temperature
80 °C

Procedure

To a solution of 3-methanesulfonyloxy-1-{4-[(3R)-1-(p-nitrobenzyloxycarbonyl)-pyrrolidin-3-ylcarbamoyl]-1,3-thiazol-2-yl}azetidine (420 mg, 0.799 mmol) (obtained as described in Reference Example 53(8)) in dimethylformamide (21 ml) was added potassium thioacetate (548 mg, 4.79 mmol) at room temperature. The mixture was stirred in an oil bath (80° C.) overnight. After checking the completion of the reaction, the reaction mixture was partitioned between ethyl acetate and 10% aqueous sodium chloride solution. The organic layer was washed successively with saturated aqueous sodium hydrogencarbonate solution and saturated aqueous sodium chloride solution, dried over anhydrous sodium sulfate, filtered and concentrated under reduced pressure. The residue was purified by chromatography on a silica gel column using n-hexane:ethyl acetate (1:2)→ethyl acetate:methanol (99:1) as the eluant to afford 3-acetylthio-1-{4-[(3R)-1-(p-nitrobenzyloxycarbonyl)-pyrrolidin-3-ylcarbamoyl]-1,3-thiazol-2-yl}azetidine (280 mg, yield 69%) as a pale brown solid.

Workup

  1. customat room temperature
  2. customthe completion of the reaction
  3. customthe reaction mixture was partitioned between ethyl acetate and 10% aqueous sodium chloride solution
  4. washThe organic layer was washed successively with saturated aqueous sodium hydrogencarbonate solution and saturated aqueous sodium chloride solution
  5. dry with materialdried over anhydrous sodium sulfate
  6. filtrationfiltered
  7. concentrationconcentrated under reduced pressure
  8. customThe residue was purified by chromatography on a silica gel column

Sources & evidence

ORD record
ord-eeeb32dc1ea04a05863933fe24028948
Source dataset
uspto-grants-2006_02
Patent number
US07001897B2

Reaction notes

Loading…