| 摘要 |
2-[2-(1,4-Benzodioxanyl)]-2-imidazoline or a non-toxic salt thereof, substantially free of 2-[2-(2-methyl-1,3-benzodioxyl)]- 2-imidazoline or a 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 tau 4.4 and tau 5.4. Process for the preparation of 2-[2-(1,4-benzodioxanyl)]-2-imidazoline, pharmaceutical compositions thereof or of its salts, and their use as presynaptic alpha 2-adrenoreceptor antagonists. |
