Trifluoromethanesulfonic anhydride → HCID 58355780, compound

HRID 1260002Notes

Reaction equation

HRID 1260002 reaction equation
[C:1]([NH:4][NH:5][C:6](=O)[CH2:7][CH2:8][N:9]1[C:13]2[CH:14]=[CH:15][CH:16]=[CH:17][C:12]=2[N:11]=[C:10]1[C:18]([N:20]([CH2:42][CH:43]([CH3:45])[CH3:44])[C@H:21]1[CH2:26][C@@H:25]([C:27]([N:29]2[CH2:34][CH2:33][O:32][CH2:31][CH2:30]2)=[O:28])[CH2:24][N:23]([C:35]([O:37][C:38]([CH3:41])([CH3:40])[CH3:39])=[O:36])[CH2:22]1)=[O:19])(=[O:3])[CH3:2].FC(F)(F)S(OS(C(F)(F)F)(=O)=O)(=O)=O>N1C=CC=CC=1>[CH3:2][C:1]1[O:3][C:6]([CH2:7][CH2:8][N:9]2[C:13]3[CH:14]=[CH:15][CH:16]=[CH:17][C:12]=3[N:11]=[C:10]2[C:18]([N:20]([CH2:42][CH:43]([CH3:44])[CH3:45])[C@H:21]2[CH2:26][C@@H:25]([C:27]([N:29]3[CH2:30][CH2:31][O:32][CH2:33][CH2:34]3)=[O:28])[CH2:24][N:23]([C:35]([O:37][C:38]([CH3:40])([CH3:41])[CH3:39])=[O:36])[CH2:22]2)=[O:19])=[N:5][N:4]=1

Participants

4

Reactant 2

HCID 67749Trifluoromethanesulfonic anhydrideHCID 59356620HCID 59356620, compound

Product 1

HCID 58355780HCID 58355780, compoundYield 41.2%

Reagents, catalysts & solvents 1

HCID 1049PyridineSolvent

Procedure

tert-Butyl (3S,5R)-3-[({1-[3-(2-acetylhydrazino)-3-oxopropyl]-1H-benzimidazol-2-yl}carbonyl)(2-methylpropyl)amino]-5-(morpholin-4-ylcarbonyl)piperidine-1-carboxylate (292 mg) was dissolved in pyridine (5 ml), and trifluoromethanesulfonic anhydride (230 μl) was added dropwise at room temperature. The reaction mixture was stirred at room temperature for 15 hr, and concentrated. The residue was diluted with 10% aqueous citric acid solution, and the mixture was extracted with ethyl acetate. The extract was washed with aqueous sodium bicarbonate and saturated brine, and dried over anhydrous sodium sulfate. The solvent was evaporated under reduced pressure. The residue was subjected to silica gel column chromatography, and a fraction eluted with ethyl acetate was concentrated under reduced pressure to give the object product (117 mg).

Workup

  1. concentrationconcentrated
  2. additionThe residue was diluted with 10% aqueous citric acid solution
  3. extractionthe mixture was extracted with ethyl acetate
  4. washThe extract was washed with aqueous sodium bicarbonate and saturated brine
  5. dry with materialdried over anhydrous sodium sulfate
  6. customThe solvent was evaporated under reduced pressure
  7. washa fraction eluted with ethyl acetate
  8. concentrationwas concentrated under reduced pressure

Sources & evidence

ORD record
ord-11c745353e9643689b779a8e5c839a44
Source dataset
uspto-grants-2013_06
Patent number
US08466282B2

Reaction notes

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