Certain intermediate aminomethyl-5,6,7,8-tetrahydronaphthyl-oxyacetic acid derivatives of the formula ##STR1## in which R.sup.2 is hydroxyl, alkoxy, phenoxy, benzoxy or NR.sup.4 R.sup.5, and R.sup.4 and R.sup.5 each independently is hydrogen or alkyl, or one of the radicals R.sup.4 or R.sup.5 is benzyl, which are useful in preparing the corresponding aryl-sulfonamides which in-turn have antithrombotic, antiatherosclerotic and antiischaemic properties.
An aminomethyl-5,6,7,8-tetrahydronaphthyl-oxyacetic acid derivative of the formula ##STR1## in which R.sup.3 is aryl or substituted aryl, R.sup.2 is hydroxyl, alkoxy, phenoxy, benzoxy or NR.sup.4 R.sup.5, and R.sup.4 and R.sup.5 each independently is hydrogen or alkyl, or one of the radicals R.sup.4 or R.sup.5 is benzyl, and physiologically acceptable salts thereof with monovalent or divalent cations which have antithrombotic, antiatherosclerotic and antiischaemic activities.