Trifluoroacetic acid → N-((3S)-1-[(1S)-2-(3-aminopiperidin-1-yl)-1-methyl-2-oxoethyl]-2-oxopyrrolidin-3-yl)-6-chloronaphthalene-2-sulfonamide

HRID 1180990Notes

Reaction equation

HRID 1180990 reaction equation
C(OC(=O)[NH:7][CH:8]1[CH2:13][CH2:12][CH2:11][N:10]([C:14](=[O:38])[C@@H:15]([N:17]2[CH2:21][CH2:20][C@H:19]([NH:22][S:23]([C:26]3[CH:35]=[CH:34][C:33]4[C:28](=[CH:29][CH:30]=[C:31]([Cl:36])[CH:32]=4)[CH:27]=3)(=[O:25])=[O:24])[C:18]2=[O:37])[CH3:16])[CH2:9]1)(C)(C)C.FC(F)(F)C(O)=O>C(Cl)Cl>[NH2:7][CH:8]1[CH2:13][CH2:12][CH2:11][N:10]([C:14](=[O:38])[C@@H:15]([N:17]2[CH2:21][CH2:20][C@H:19]([NH:22][S:23]([C:26]3[CH:35]=[CH:34][C:33]4[C:28](=[CH:29][CH:30]=[C:31]([Cl:36])[CH:32]=4)[CH:27]=3)(=[O:25])=[O:24])[C:18]2=[O:37])[CH3:16])[CH2:9]1

Participants

4

Reactant 2

HCID 6422Trifluoroacetic acidHCID 69823661tert-Butyl 1-[(2S)-2-((3S)-3-{[(6-chloro-2-naphthyl)sulfonyl]amino}-2-oxopyrrolidin-1-yl)propanoyl]piperidin-3-ylcarbamate

Product 1

HCID 69329851N-((3S)-1-[(1S)-2-(3-aminopiperidin-1-yl)-1-methyl-2-oxoethyl]-2-oxopyrrolidin-3-yl)-6-chloronaphthalene-2-sulfonamideYield 76.6%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

tert-Butyl1-[(2S)-2-((3S)-3-{[(6-chloro-2-naphthyl)sulfonyl]amino}-2-oxopyrrolidin-1-yl)propanoyl]piperidin-3-ylcarbamate (0.6 g) was dissolved in DCM (11 ml) and trifluoroacetic acid (11 ml) was added. The mixture was stirred at room temperature for 2 h and then concentrated under reduced pressure. The residue was dissolved in water (5 ml) and ammonia solution (0.88%; 1 ml) added. The resultant aqueous mixture was extracted with DCM. The combined organic extracts were dried (over magnesium sulphate), filtered and concentrated under reduced pressure to give the title compound (0.38 g) as a white foam.

Workup

  1. concentrationconcentrated under reduced pressure
  2. dissolutionThe residue was dissolved in water (5 ml)
  3. additionammonia solution (0.88%; 1 ml) added
  4. extractionThe resultant aqueous mixture was extracted with DCM
  5. dry with materialThe combined organic extracts were dried (over magnesium sulphate)
  6. filtrationfiltered
  7. concentrationconcentrated under reduced pressure

Sources & evidence

ORD record
ord-01d61275db6f4243a6a72ad5ffcf0838
Source dataset
uspto-grants-2007_10
Patent number
US07282497B2

Reaction notes

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