Trifluoroacetic acid → (2S)-2-((3S)-3-{[(6-chloro-2-naphthyl)sulfonyl]amino}-2-oxopyrrolidin-1-yl)propanoic acid

HRID 2110049Notes

Reaction equation

HRID 2110049 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]2[C:9](=[CH:10][CH:11]=1)[CH:8]=[C:7]([S:12]([NH:15][C@H:16]1[CH2:20][CH2:19][N:18]([C@@H:21]([CH3:29])[C:22]([O:24]C(C)(C)C)=[O:23])[C:17]1=[O:30])(=[O:14])=[O:13])[CH:6]=[CH:5]2.FC(F)(F)C(O)=O>C(Cl)Cl>[Cl:1][C:2]1[CH:3]=[C:4]2[C:9](=[CH:10][CH:11]=1)[CH:8]=[C:7]([S:12]([NH:15][C@H:16]1[CH2:20][CH2:19][N:18]([C@@H:21]([CH3:29])[C:22]([OH:24])=[O:23])[C:17]1=[O:30])(=[O:14])=[O:13])[CH:6]=[CH:5]2

Participants

4

Reactant 2

HCID 6422Trifluoroacetic acidHCID 69221511tert-butyl(2S)-2-((3S)-3-{[(6-chloro-2-naphthyl)sulfonyl]amino}-2-oxopyrrolidin-1-yl)propanoate

Product 1

HCID 69058818(2S)-2-((3S)-3-{[(6-chloro-2-naphthyl)sulfonyl]amino}-2-oxopyrrolidin-1-yl)propanoic acidYield 99.4%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

tert-Butyl (2S)-2-((3S)-3-{[(6-chloro-2-naphthyl)sulfonyl]amino}-2-oxopyrrolidin-1-yl)propanoate (0.643 g) was dissolved in DCM (19 ml), and trifluoroacetic acid (19 ml) was added. The mixture was stirred at room temperature for 2.5 h and then concentrated under reduced pressure. Anhydrous DCM (4 ml) was added and the solution concentrated under reduced pressure. Repetitive addition of DCM and concentration under reduced pressure provided the title compound (0.56 g) as a white foam.

Workup

  1. concentrationconcentrated under reduced pressure
  2. additionAnhydrous DCM (4 ml) was added
  3. concentrationthe solution concentrated under reduced pressure
  4. additionRepetitive addition of DCM and concentration under reduced pressure

Sources & evidence

ORD record
ord-6c6591d886084a2e88a9382a418c1fd2
Source dataset
uspto-grants-2009_04
Patent number
US07517879B2

Reaction notes

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