Sulfuric Acid → 2-[4-(5,6-Dimethyl-[2,2']bipyridin-3-yloxy)-6-methoxy-quinolin-7-yloxymethyl]-propane-1,3-diol

HRID 228943Notes

Reaction equation

HRID 228943 reaction equation
[CH3:1][C:2]1[CH:3]=[C:4]([O:15][C:16]2[C:25]3[C:20](=[CH:21][C:22]([OH:28])=[C:23]([O:26][CH3:27])[CH:24]=3)[N:19]=[CH:18][CH:17]=2)[C:5]([C:9]2[CH:14]=[CH:13][CH:12]=[CH:11][N:10]=2)=[N:6][C:7]=1[CH3:8].C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.CC1(C)[O:54][CH2:53][CH:52]([CH2:55]O)[CH2:51][O:50]1.CCOC(/N=N/C(OCC)=O)=O.S(=O)(=O)(O)O.[OH-].[Na+]>O1CCCC1.O>[CH3:1][C:2]1[CH:3]=[C:4]([O:15][C:16]2[C:25]3[C:20](=[CH:21][C:22]([O:28][CH2:55][CH:52]([CH2:53][OH:54])[CH2:51][OH:50])=[C:23]([O:26][CH3:27])[CH:24]=3)[N:19]=[CH:18][CH:17]=2)[C:5]([C:9]2[CH:14]=[CH:13][CH:12]=[CH:11][N:10]=2)=[N:6][C:7]=1[CH3:8]

Participants

9

Reactant 6

HCID 1118Sulfuric AcidHCID 11776TriphenylphosphineHCID 14798Sodium HydroxideHCID 3584869(2,2-Dimethyl-1,3-dioxan-5-yl)methanolHCID 5462977Diethyl azodicarboxylateHCID 1361316214-(5,6-Dimethyl-[2,2']bipyridin-3-yloxy)-6-methoxy-quinolin-7-ol2×

Product 1

HCID 577563872-[4-(5,6-Dimethyl-[2,2']bipyridin-3-yloxy)-6-methoxy-quinolin-7-yloxymethyl]-propane-1,3-diolYield 52%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 8028TetrahydrofuranSolvent

Procedure

4-(5,6-Dimethyl-[2,2′]bipyridin-3-yloxy)-6-methoxy-quinolin-7-ol (compound 338) (80 mg) was dissolved in tetrahydrofuran (2 ml) to prepare a solution. Triphenylphosphine (112 mg), (2,2-dimethyl-[1,3]dioxan-5-yl)-methanol (38 mg), and diethylazodicarboxylate (0.078 ml) were added to the solution, and the mixture was stirred at room temperature for 6 hr. Further, 1 N sulfuric acid (4 ml) was added thereto, the mixture was stirred at room temperature overnight, and the reaction solution was brought to 0° C. and was stirred. The reaction solution was made alkaline by the addition of a 10% aqueous sodium hydroxide solution. Water was added thereto, and the mixture was extracted with ethyl acetate. The ethyl acetate layer was then washed with saturated brine and was dried over anhydrous sodium sulfate. The solvent was removed by distillation under the reduced pressure, and the residue was purified by thin layer chromatography using chloroform-methanol to give the title compound (50 mg, yield 52%).

Workup

  1. customto prepare a solution
  2. stirringthe mixture was stirred at room temperature overnight
  3. customwas brought to 0° C.
  4. stirringwas stirred
  5. extractionthe mixture was extracted with ethyl acetate
  6. washThe ethyl acetate layer was then washed with saturated brine
  7. dry with materialwas dried over anhydrous sodium sulfate
  8. customThe solvent was removed by distillation under the reduced pressure
  9. customthe residue was purified by thin layer chromatography

Sources & evidence

ORD record
ord-87e525796d4342198d1c347b7493222a
Source dataset
uspto-grants-2009_07
Patent number
US07560558B2

Reaction notes

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