6-((6-(1-ethoxyvinyl)-1H-[1,2,3]triazolo[4,5-b]pyrazin-1-yl)methyl)-5,7-difluoroquinoline → 1-(1-((5,7-difluoroquinolin-6-yl)methyl)-1H-[1,2,3]triazolo[4,5-b]pyrazin-6-yl)ethanone

HRID 1892429Notes

Reaction equation

HRID 1892429 reaction equation
C([O:3][C:4]([C:6]1[N:11]=[C:10]2[N:12]([CH2:15][C:16]3[C:17]([F:27])=[C:18]4[C:23](=[CH:24][C:25]=3[F:26])[N:22]=[CH:21][CH:20]=[CH:19]4)[N:13]=[N:14][C:9]2=[N:8][CH:7]=1)=[CH2:5])C>C(O)(=O)C.Cl>[F:27][C:17]1[C:16]([CH2:15][N:12]2[C:10]3=[N:11][C:6]([C:4](=[O:3])[CH3:5])=[CH:7][N:8]=[C:9]3[N:14]=[N:13]2)=[C:25]([F:26])[CH:24]=[C:23]2[C:18]=1[CH:19]=[CH:20][CH:21]=[N:22]2

Participants

4

Reactant 1

HCID 698109656-((6-(1-ethoxyvinyl)-1H-[1,2,3]triazolo[4,5-b]pyrazin-1-yl)methyl)-5,7-difluoroquinoline

Product 1

HCID 698122851-(1-((5,7-difluoroquinolin-6-yl)methyl)-1H-[1,2,3]triazolo[4,5-b]pyrazin-6-yl)ethanoneYield 63%

Reagents, catalysts & solvents 2

HCID 176Acetic AcidSolventHCID 313Hydrochloric AcidSolvent

Procedure

To a solution of the 6-((6-(1-ethoxyvinyl)-1H-[1,2,3]triazolo[4,5-b]pyrazin-1-yl)methyl)-5,7-difluoroquinoline (6.0 mg, 0.45 mmol) in acetic acid, 3N HCl (0.1 mL) was added. The solution stirred at it for 2 h. Solvents were removed under reduced pressure. The residue was diluted with water, treated with aqueous NaHCO3 solution, extracted with DCM. The organic layer was washed sequencially with NaHCO3 (aq.) and brine, dried over Na2SO4, filtered and concentrated in vacuo. The residue was purified by silica gel column chromatography with Hexane:ethyl acetate to give yellow solid 1-(1-((5,7-difluoroquinolin-6-yl)methyl)-1H-[1,2,3]triazolo[4,5-b]pyrazin-6-yl)ethanone (3.5 mg), yield 63%. LCMS (method B): [MH]+=340.9, tR=2.09 min.

Workup

  1. customSolvents were removed under reduced pressure
  2. additionThe residue was diluted with water
  3. additiontreated with aqueous NaHCO3 solution
  4. extractionextracted with DCM
  5. washThe organic layer was washed sequencially with NaHCO3 (aq.) and brine
  6. dry with materialdried over Na2SO4
  7. filtrationfiltered
  8. concentrationconcentrated in vacuo
  9. customThe residue was purified by silica gel column chromatography with Hexane

Sources & evidence

ORD record
ord-a30a141f727940fd8108134ddab94eab
Source dataset
uspto-grants-2013_08
Patent number
US08507676B2

Reaction notes

Loading…