(Trifluoromethyl)trimethylsilane → n-(4-Chloro-2-[1,2,3]triazolo[4,5-b]pyridin-1-yl-phenyl)-4-(2,2,2-trifluoro-1-hydroxy-1-methyl-ethyl)-benzenesulfonamide

HRID 76014Notes

Reaction equation

HRID 76014 reaction equation
[C:1]([C:4]1[CH:9]=[CH:8][C:7]([S:10]([NH:13][C:14]2[CH:19]=[CH:18][C:17]([Cl:20])=[CH:16][C:15]=2[N:21]2[C:29]3[C:24](=[N:25][CH:26]=[CH:27][CH:28]=3)[N:23]=[N:22]2)(=[O:12])=[O:11])=[CH:6][CH:5]=1)(=[O:3])[CH3:2].[C:30]([Si](C)(C)C)([F:33])([F:32])[F:31].[F-].C([N+](CCCC)(CCCC)CCCC)CCC>CCOC(C)=O>[Cl:20][C:17]1[CH:18]=[CH:19][C:14]([NH:13][S:10]([C:7]2[CH:6]=[CH:5][C:4]([C:1]([OH:3])([CH3:2])[C:30]([F:33])([F:32])[F:31])=[CH:9][CH:8]=2)(=[O:12])=[O:11])=[C:15]([N:21]2[C:29]3[C:24](=[N:25][CH:26]=[CH:27][CH:28]=3)[N:23]=[N:22]2)[CH:16]=1

Participants

5

Reactant 3

HCID 552549(Trifluoromethyl)trimethylsilaneHCID 2724141Tetrabutylammonium FluorideHCID 573784044-acetyl-N-(4-chloro-2-[1,2,3]triazolo[4,5-b]pyridin-1-yl-phenyl)benzenesulfonamide

Product 1

HCID 57377969n-(4-Chloro-2-[1,2,3]triazolo[4,5-b]pyridin-1-yl-phenyl)-4-(2,2,2-trifluoro-1-hydroxy-1-methyl-ethyl)-benzenesulfonamide

Reagents, catalysts & solvents 1

HCID 8857Ethyl AcetateSolvent

Procedure

To 4-acetyl-N-(4-chloro-2-[1,2,3]triazolo[4,5-b]pyridin-1-yl-phenyl)-benzene-sulfonamide (synthesized according to general procedures F and G, 500 mg, 1.17 mmol) was added CF3-TMS (trifluoromethyl-trimethylsilane) (4.7 mL, 0.5 M solution in THF), followed by TBAF (tetra-n-butylammonium fluoride)(2.34 mL, 1.0 M solution in THF) at 0° C., and the solution was stirred at room temperature for 16 hours. Both TLC and LCMS analysis indicated ˜10-15% completion of reaction. The reaction mixture was diluted with EtOAc (50 mL) and the organics were washed with washed with 2 N HCl (2×25 mL), water (25 mL), and brine (25 mL). The organics were subsequently dried (Na2SO4), concentrated in vacuo, and purified by automated flash chromatography followed by preparative HPLC to afford the title compound as a white powder: MS (ES) M+H expected 498.1, found 498.0.

Workup

  1. custom˜10-15% completion of reaction
  2. washthe organics were washed
  3. washwith washed with 2 N HCl (2×25 mL), water (25 mL), and brine (25 mL)
  4. dry with materialThe organics were subsequently dried (Na2SO4)
  5. concentrationconcentrated in vacuo
  6. custompurified by automated flash chromatography

Sources & evidence

ORD record
ord-63196df21b2f4081bc478afeefdf76f5
Source dataset
uspto-grants-2014_09
Patent number
US08835468B2

Reaction notes

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