| abstract |
A glycyrrhetic acid derivative of the formula ##STR1## wherein X and Y are hydrogen atom, respectively or X is oxygen atom together with Y, A 1 is methylene or carbonyl radical, A 2 is hydrogen atom, cyano, carbamoyl, carboxyl radical or alkoxycarbonyl group, m and n are an integer, respectively, R 1 is a radical of ##STR2## in which R 2 is an alkyl, alkenyl group, phenyl radical or a substituted phenyl radical, A 3 is S, O or NH, and l is an integer, a process for the preparation of the derivatives, and use of the derivative as a pharmaceutical agent. |