Triethylamine → HCID 86590874, compound

HRID 891723Notes

Reaction equation

HRID 891723 reaction equation
[OH:1][CH:2]1[CH2:5][N:4]([C:6]2[S:7][CH:8]=[C:9]([C:11](=[O:31])[NH:12][C@H:13]3[CH2:17][CH2:16][N:15]([C:18]([O:20][CH2:21][C:22]4[CH:27]=[CH:26][C:25]([N+:28]([O-:30])=[O:29])=[CH:24][CH:23]=4)=[O:19])[CH2:14]3)[N:10]=2)[CH2:3]1.[CH3:32][S:33](Cl)(=[O:35])=[O:34].C(N(CC)CC)C>C(Cl)Cl>[CH3:32][S:33]([O:1][CH:2]1[CH2:3][N:4]([C:6]2[S:7][CH:8]=[C:9]([C:11](=[O:31])[NH:12][C@H:13]3[CH2:17][CH2:16][N:15]([C:18]([O:20][CH2:21][C:22]4[CH:27]=[CH:26][C:25]([N+:28]([O-:30])=[O:29])=[CH:24][CH:23]=4)=[O:19])[CH2:14]3)[N:10]=2)[CH2:5]1)(=[O:35])=[O:34]

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 31297Methanesulfonyl chlorideHCID 69543941HCID 69543941, compound

Product 1

HCID 86590874HCID 86590874, compoundYield 99.8%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a solution of 3-hydroxy-1-{4-[(3S)-1-(p-nitrobenzyloxycarbonyl)-pyrrolidin-3-ylcarbamoyl]-1,3-thiazol-2-yl}azetidine (350 mg, 0.782 mmol) (obtained as described in Reference Example 52(6)) in methylene chloride (18 ml) were added methanesulfonyl chloride (182 μl, 2.35 mmol) and triethylamine (329 μl, 2.35 mmol) in an ice bath. After stirring the mixture in the ice bath for 10 minutes, the mixture was stirred at room temperature for 1.5 hours. After checking the completion of the reaction, the reaction mixture was partitioned between ethyl acetate and saturated aqueous sodium hydrogencarbonate solution. The organic layer was washed with 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 ethyl acetate→ethyl acetate:methanol (98:2) as the eluant to afford 3-methanesulfonyloxy-1-{4-[(3S)-1-(p-nitrobenzyloxycarbonyl)-pyrrolidin-3-ylcarbamoyl]-1,3-thiazol-2-yl}azetidine (410 mg, yield 99%) as a pale yellow solid.

Workup

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

Sources & evidence

ORD record
ord-4c4a78ccd13942e985a4be5670cf6bea
Source dataset
uspto-grants-2006_02
Patent number
US07001897B2

Reaction notes

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