Hydrochloric Acid → HCID 54706315, compound

HRID 613013Notes

Reaction equation

HRID 613013 reaction equation
[O:1]=[C:2]1[CH:11]=[C:10]([O:12]COC)[C:9]2[C:4](=[CH:5][CH:6]=[CH:7][CH:8]=2)[N:3]1[C:16]1[CH:21]=[C:20]([C:22]2[C:31]3[C:26](=[CH:27][C:28]([O:34][CH3:35])=[C:29]([O:32][CH3:33])[CH:30]=3)[CH:25]=[C:24]([CH2:36][OH:37])[C:23]=2[CH2:38][OH:39])[CH:19]=[CH:18][N:17]=1.Cl>O1CCOCC1.CO>[O:1]=[C:2]1[CH:11]=[C:10]([OH:12])[C:9]2[C:4](=[CH:5][CH:6]=[CH:7][CH:8]=2)[N:3]1[C:16]1[CH:21]=[C:20]([C:22]2[C:31]3[C:26](=[CH:27][C:28]([O:34][CH3:35])=[C:29]([O:32][CH3:33])[CH:30]=3)[CH:25]=[C:24]([CH2:36][OH:37])[C:23]=2[CH2:38][OH:39])[CH:19]=[CH:18][N:17]=1

Participants

5

Reactant 2

HCID 313Hydrochloric AcidHCID 22007450HCID 22007450, compound

Product 1

HCID 54706315HCID 54706315, compoundYield 62%

Reagents, catalysts & solvents 2

HCID 887MethanolSolventHCID 312751,4-DioxaneSolvent

Conditions

Temperature
50 °C

Procedure

1-[2-(2-Oxo-4-methoxymethoxy-1,2-dihydroquinolin-1-yl)-4-pyridyl]-2,3-bis(hydroxymethyl)-6,7-dimethoxynaphthalene (1.39 g) is dissolved in a mixture of dioxane (10 ml) and methanol (5 ml), and thereto is added 2 M hydrochloric acid (2 ml). The mixture is warmed to 50° C., and stirred for 7 hours, and then concentrated under reduced pressure to remove the solvent. To the residue are added chloroform and water, and the chloroform layer is separated, washed, dried and concentrated under reduced pressure to remove the solvent. The residue is purified by silica gel column chromatography (solvent; chloroform:methanol=10:1) to give 1-[2-(2-oxo-4-hydroxy-1,2-dihydroquinolin-1-yl)-4-pyridyl]-2,3-bis(hydroxymethyl)-6,7-dimethoxynaphthalene (0.79 g) which is listed in Table 7.

Workup

  1. concentrationconcentrated under reduced pressure
  2. customto remove the solvent
  3. additionTo the residue are added chloroform and water
  4. customthe chloroform layer is separated
  5. washwashed
  6. customdried
  7. concentrationconcentrated under reduced pressure
  8. customto remove the solvent
  9. customThe residue is purified by silica gel column chromatography (solvent; chloroform:methanol=10:1)

Sources & evidence

ORD record
ord-22947429137e409aa5a1f9d7df07be36
Source dataset
uspto-grants-1999_12
Patent number
US06005106

Reaction notes

Loading…