Imidazoline derivative, its salts, process for preparation and pharmaceutical compositions thereof.

摘要

2-[2-(1,4-Benzodioxanyl)]-2-imidazoline or a non-toxic salt thereof, substantially free of 2-methyl-2-[2-(1,-3-benzodioxolyl)]-2-imidazoline or non-toxic salt thereof.

2-[2-(1,4-Benzodioxanyl)]-2-imidazoline or a non-toxic salt thereof characterised in that the nuclear magnetic resonance spectrum of the compound in a protonated form exhibits multiplets in the region of τ 4.4 and τ 5.4.

Process for the preparation of 2-[2-(1,4-benz- odioxanyl)]-2-imidazoline, pharmaceutical compositions thereof or of its salts, and their use as presynaptic α<Sub>2</Sub>- adrenoreceptor antagonists.