Hydroxyamine hydrochloride → HCID 135719043, compound

Participants

Reaction Steps

1-(4-Ethylpiperazin-1-yl)-3-(4-formylphenyl)isoquinoline (3.00 g) obtained in Example 17-5 was reacted with hydroxylamine hydrochloride (0.90 g) and sodium acetate (1.10 g) in ethanol (50 ml) at 60° C. for 2 hr. The reaction solution was evaporated, and then the resulting residue was extracted in methylene chloride, washed with brine and dried. The solvent was removed, and the resulting residue was isolated and purified by silica gel column chromatography (methylene chloride/methanol system), to give (Z)-1-(4-ethylpiperazin-1-yl)-3-(4-hydroxyiminomethylphenyl)isoquinoline (1.01 g) and (E)-1-(4-ethylpiperazin-1-yl)-3-(4-hydroxyiminomethylphenyl)isoquinoline (1.52 g), both as yellow solids. 0.30 g each of the compounds was converted into a hydrochloride in a conventional manner, to give the hydrochlorides of the title compounds as yellow powders (0.32 g and 0.35 g, respectively).

Provenance & Evidence