Trifluoroacetic acid → 2-(3-((2-(2-Fluorophenyl)-4-((methylamino)methyl)-1H-pyrrol-1-yl)sulfonyl)phenoxy)-N-methylacetamide

HRID 1051005Notes

Reaction equation

HRID 1051005 reaction equation
[F:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[C:8]1[N:12]([S:13]([C:16]2[CH:21]=[CH:20][CH:19]=[C:18]([O:22][CH2:23][C:24]([NH:26][CH3:27])=[O:25])[CH:17]=2)(=[O:15])=[O:14])[CH:11]=[C:10]([CH2:28][N:29](C)[C:30](=O)OC(C)(C)C)[CH:9]=1.FC(F)(F)C(O)=O.C(=O)(O)[O-].[Na+]>ClCCl>[F:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[C:8]1[N:12]([S:13]([C:16]2[CH:17]=[C:18]([CH:19]=[CH:20][CH:21]=2)[O:22][CH2:23][C:24]([NH:26][CH3:27])=[O:25])(=[O:15])=[O:14])[CH:11]=[C:10]([CH2:28][NH:29][CH3:30])[CH:9]=1

Participants

5

Reactant 3

HCID 6422Trifluoroacetic acidHCID 516892Sodium BicarbonateHCID 90168692tert-butyl ((5-(2-fluorophenyl)-1-((3-(2-(methylamino)-2-oxoethoxy)phenyl)sulfonyl)-1H-pyrrol-3-yl)methyl)(methyl)carbamate

Product 1

HCID 738909672-(3-((2-(2-Fluorophenyl)-4-((methylamino)methyl)-1H-pyrrol-1-yl)sulfonyl)phenoxy)-N-methylacetamide

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

tert-Butyl ((5-(2-fluorophenyl)-1-((3-(2-(methylamino)-2-oxoethoxy)phenyl)sulfonyl)-1H-pyrrol-3-yl)methyl)(methyl)carbamate 1j (60 mg, 0.11 mmol) was dissolved in 8 mL of dichloromethane, followed by addition of 2 mL of trifluoracetic acid, and then the reaction solution was stirred for 1 h. 20 mL of saturated sodium bicarbonate solution was added, and the reaction solution was extracted with dichloromethane (30 mL×2). The organic phases were combined, dried over anhydrous sodium sulfate, filtered, and the filtrate was concentrated under reduced pressure. The resulting residue was purified by silica gel column chromatography with elution system A to obtain the title product 2-(3-((2-(2-fluorophenyl)-4-((methylamino)methyl)-1H-pyrrol-1-yl)sulfonyl)phenoxy)-N-methylacetamide 1 (15 mg, a yellow oil), and the yield of the three steps was 16%.

Workup

  1. extractionthe reaction solution was extracted with dichloromethane (30 mL×2)
  2. dry with materialdried over anhydrous sodium sulfate
  3. filtrationfiltered
  4. concentrationthe filtrate was concentrated under reduced pressure
  5. customThe resulting residue was purified by silica gel column chromatography with elution system

Sources & evidence

ORD record
ord-929dcb5052844ad09aa269e24b602e97
Source dataset
uspto-grants-2016_07
Patent number
US09388133B2

Reaction notes

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