Compound of formula (I): ##STR1## wherein: Y, R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, R.sub.7, R.sub.8 and n are as defined in the description, and medicinal products containing the same which are useful as imidazoline receptor ligands.
derivatives and tricyclic analogues with a fused additional ring on the nitrogenatom of the benzoxazine moiety have been prepared and evaluated for their cardiovascular effects as potential antihypertensive agents. The imidazoline ring was generated by reaction of the corresponding ethyl ester with ethylenediamine. Affinities for imidazoline binding sites (IBS) I(1) and I(2) and alpha(1) and alpha(2)