Substituted benzamido propanolamines

A compound selected from the group consisting of:

• - A propanol derivative having the formula I:
• ##STR12## wherein:
• R.sub.1 represents a hydrogen or halogen atom, an alkyl, alkenyl, alkoxy or an alkenyloxy radical having from 1 to 5 carbon atoms, or carbamoyl radical;
• R.sub.2 represents a hydrogen atom, a hydroxy radical, an alkoxy radical having from 1 to 5 carbon atoms or a phenyl alkoxy radical wherein the alkoxy moiety has from 1 to 5 carbon atoms;
• R.sub.3 represents a hydrogen atom, a hydroxy radical, an alkoxy radical having from 1 to 5 carbon atoms, a phenyl alkoxy radical wherein the alkoxy moiety has from 1 to 5 carbon atoms, a nitro radical or an amino radical;
• or R.sub.1 and R.sub.2 together or R.sub.2 and R.sub.3 together represent the --CH.dbd.CH--CH.dbd.CH moiety;
• R.sub.4 represents a hydrogen atom,
• R.sub.5 is selected from the group consisting of alkyl radicals having from 1 to 5 carbon atoms;
• R.sub.6 is selected from the group consisting of a hydrogen atom, a lower alkyl radical, a lower alkenyl radical and a benzyl radical;
• R.sub.7 is selected from the group consisting of a lower alkyl radical, a lower alkenyl and a phenyl lower alkyl radical wherein the lower alkyl moiety has 1 - 5 carbon atoms.