Sodium Carbonate → (11S)-11-[(benzyloxy)methyl]-10,11-dihydro-8H-[1,4]oxazino[4',3':1,2]imidazo[4,5-c]quinoline 5-oxide

HRID 221576Notes

Reaction equation

HRID 221576 reaction equation
[CH2:1]([O:8][CH2:9][C@@H:10]1[N:15]2[C:16]3[C:25]4[C:20](=[CH:21][CH:22]=[CH:23][CH:24]=4)[N:19]=[CH:18][C:17]=3[N:26]=[C:14]2[CH2:13][O:12][CH2:11]1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.C1C=C(Cl)C=C(C(OO)=[O:35])C=1.C([O-])([O-])=O.[Na+].[Na+]>C(Cl)Cl>[CH2:1]([O:8][CH2:9][C@@H:10]1[N:15]2[C:16]3[C:25]4[C:20](=[CH:21][CH:22]=[CH:23][CH:24]=4)[N+:19]([O-:35])=[CH:18][C:17]=3[N:26]=[C:14]2[CH2:13][O:12][CH2:11]1)[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

Participants

5

Reactant 3

HCID 10340Sodium CarbonateHCID 70297m-Chloroperbenzoic acidHCID 67157259(11S)-11-[(benzyloxy)methyl]-10,11-dihydro-8H-[1,4]oxazino[4',3':1,2]imidazo[4,5-c]quinoline

Product 1

HCID 67156190(11S)-11-[(benzyloxy)methyl]-10,11-dihydro-8H-[1,4]oxazino[4',3':1,2]imidazo[4,5-c]quinoline 5-oxideYield 99.5%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Procedure

(11S)-11-[(Benzyloxy)methyl]-10,11-dihydro-8H-[1,4]oxazino[4′,3′:1,2]imidazo[4,5-c]quinoline (0.92 g, 2.67 mmol) was dissolved in 25 mL of CH2Cl2 and treated with MCPBA (0.81 g, 57-86% purity). After stirring for 2 hours, the reaction mixture was treated with 25 mL of CH2Cl2 and 25 mL of 5% Na2CO3 solution and the layers were separated. The aqueous portion was extracted with an additional 10 mL of CH2Cl2. The combined organic layers were washed successively with H2O (20 mL) and brine (20 mL). The organic portion was dried over Na2SO4, filtered and concentrated under reduced pressure to give 0.96 g of (11S)-11-[(benzyloxy)methyl]-10,11-dihydro-8H-[1,4]oxazino[4′,3′:1,2]imidazo[4,5-c]quinoline 5-oxide as a light-brown solid.

Workup

  1. customthe layers were separated
  2. extractionThe aqueous portion was extracted with an additional 10 mL of CH2Cl2
  3. washThe combined organic layers were washed successively with H2O (20 mL) and brine (20 mL)
  4. dry with materialThe organic portion was dried over Na2SO4
  5. filtrationfiltered
  6. concentrationconcentrated under reduced pressure

Sources & evidence

ORD record
ord-84d61806921e48ffb9e4d98efdba2b37
Source dataset
uspto-grants-2012_06
Patent number
US08207162B2

Reaction notes

Loading…