Trifluoroacetic acid → HCID 59398251, compound

HRID 39931Notes

Reaction equation

HRID 39931 reaction equation
[O:1]1[C:6]2[CH:7]=[CH:8][C:9]([CH2:11][N:12]([CH:20]3[CH2:25][CH2:24][N:23]([CH2:26][CH2:27][N:28]4[C:37]5[C:32](=[C:33]([Br:38])[CH:34]=[CH:35][CH:36]=5)[CH:31]=[CH:30][C:29]4=[O:39])[CH2:22][CH2:21]3)C(=O)OC(C)(C)C)=[CH:10][C:5]=2[O:4][CH2:3][CH2:2]1.FC(F)(F)C(O)=O>C(Cl)(Cl)Cl>[O:1]1[C:6]2[CH:7]=[CH:8][C:9]([CH2:11][NH:12][CH:20]3[CH2:25][CH2:24][N:23]([CH2:26][CH2:27][N:28]4[C:37]5[C:32](=[C:33]([Br:38])[CH:34]=[CH:35][CH:36]=5)[CH:31]=[CH:30][C:29]4=[O:39])[CH2:22][CH2:21]3)=[CH:10][C:5]=2[O:4][CH2:3][CH2:2]1

Participants

4

Reactant 2

HCID 6422Trifluoroacetic acidHCID 59398396HCID 59398396, compound

Product 1

HCID 59398251HCID 59398251, compound

Reagents, catalysts & solvents 1

HCID 6212ChloroformSolvent

Procedure

To 2 mL of a chloroform solution containing 244 mg of tert-butyl (2,3-dihydro-1,4-benzodioxin-6-ylmethyl)(1-(2-(5-bromo-2-oxoquinolin-1(2H)-yl)ethyl)piperidin-4-yl)carbamate, 2 mL of trifluoroacetic acid was added and stirred at room temperature for 3 hours. After solvents of the reaction mixture were removed under reduced pressure and the residue was alkalized by aqueous saturated sodium hydrogen carbonate solution, it was extracted with ethyl acetate. The organic layer was washed sequentially with water and aqueous saturated sodium chloride solution, dried over anhydrous magnesium sulfate, and the solvent was removed under reduced pressure. The residue thus obtained was purified by silica gel column chromatography [Silica Gel; Fuji Silysia Chemical Ltd., Chromatorex-NH, eluent; chloroform], to give 143 mg of (1-(2-(4-((2,3-dihydro-1,4-benzodioxin-6-ylmethyl)amino)piperidin-1-yl)ethyl)-5-bromoquinolin-2(1H)-one as a colorless oil.

Workup

  1. additionwas added
  2. customAfter solvents of the reaction mixture were removed under reduced pressure
  3. extractionwas extracted with ethyl acetate
  4. washThe organic layer was washed sequentially with water and aqueous saturated sodium chloride solution
  5. dry with materialdried over anhydrous magnesium sulfate
  6. customthe solvent was removed under reduced pressure
  7. customThe residue thus obtained
  8. customwas purified by silica gel column chromatography [Silica Gel; Fuji Silysia Chemical Ltd., Chromatorex-NH, eluent; chloroform]

Sources & evidence

ORD record
ord-6bb29af2220d45e68a480b5380636a83
Source dataset
uspto-grants-2013_09
Patent number
US08524738B2

Reaction notes

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