(11S)-11-methyl-3-[(E)-2-(methylsulfonyl)ethenyl]-10,11-dihydro-8H-[1,4]oxazino[4',3':1,2]imidazo[4,5-c]quinoline → (11S)-11-methyl-3-[2-(methylsulfonyl)ethyl]-10,11-dihydro-8H-[1,4]oxazino[4',3':1,2]imidazo[4,5-c]quinoline

HRID 221626Notes

Reaction equation

HRID 221626 reaction equation
[CH3:1][C@@H:2]1[N:7]2[C:8]3[C:17]4[C:12](=[CH:13][C:14](/[CH:18]=[CH:19]/[S:20]([CH3:23])(=[O:22])=[O:21])=[CH:15][CH:16]=4)[N:11]=[CH:10][C:9]=3[N:24]=[C:6]2[CH2:5][O:4][CH2:3]1>[Pd].C(O)C>[CH3:1][C@@H:2]1[N:7]2[C:8]3[C:17]4[C:12](=[CH:13][C:14]([CH2:18][CH2:19][S:20]([CH3:23])(=[O:21])=[O:22])=[CH:15][CH:16]=4)[N:11]=[CH:10][C:9]=3[N:24]=[C:6]2[CH2:5][O:4][CH2:3]1

Participants

4

Reactant 1

HCID 86624133(11S)-11-methyl-3-[(E)-2-(methylsulfonyl)ethenyl]-10,11-dihydro-8H-[1,4]oxazino[4',3':1,2]imidazo[4,5-c]quinoline

Product 1

HCID 67157340(11S)-11-methyl-3-[2-(methylsulfonyl)ethyl]-10,11-dihydro-8H-[1,4]oxazino[4',3':1,2]imidazo[4,5-c]quinolineYield 99.4%

Reagents, catalysts & solvents 2

HCID 23938PalladiumCatalystHCID 702EthanolSolvent2×

Procedure

A 250-mL, glass Parr bottle was charged with palladium on carbon (10%, 0.04 g) and 2 mL of ethanol. A solution of (11S)-11-methyl-3-[(E)-2-(methylsulfonyl)ethenyl]-10,11-dihydro-8H-[1,4]oxazino[4′,3′:1,2]imidazo[4,5-c]quinoline (0.45 g, 1.31 mmol) dissolved in 125 mL of ethanol was then added. The reaction mixture was placed on Parr apparatus and shaken under H2 at 50 PSI (3.4×105 Pa) overnight at ambient temperature. The reaction mixture was then filtered through a pad of CELITE filter agent. The pad rinsed with ethanol and the combined filtrates were concentrated under reduced pressure to give 0.45 g of (11S)-11-methyl-3-[2-(methylsulfonyl)ethyl]-10,11-dihydro-8H-[1,4]oxazino[4′,3′:1,2]imidazo[4,5-c]quinoline as a white solid.

Workup

  1. additionwas then added
  2. filtrationThe reaction mixture was then filtered through a pad of CELITE
  3. filtrationfilter agent
  4. washThe pad rinsed with ethanol
  5. concentrationthe combined filtrates were concentrated under reduced pressure

Sources & evidence

ORD record
ord-08ffc6c8b54c413bb4b60a8aaa9951dc
Source dataset
uspto-grants-2012_06
Patent number
US08207162B2

Reaction notes

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