Hydrochloric Acid → HCID 54706315, compound

Participants

Reaction Conditions

Reaction Steps

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.

Provenance & Evidence