| abstract |
THE INVENTION CONCERNS A COMPOUND OF FORMULA II (CF DRAWING IN BOPI) AND THE CORRESPONDING ISOMETERS AND ACID SALTS, FORMULA IN WHICH: -A AND B ARE WHOLE INDEPENDENTLY WHICH MAY TAKE THE VALUES 0 OR 1; -R, R, R AND R REPRESENT, INDEPENDENTLY, A HYDROGEN ATOM, A RADICAL ALKYL LINEAR OR RAMIFIED CC OR A RADICAL ALCOXY CC; -R REPRESENT A RADICAL ALKYL CC; -R AND R REPRESENT AN ATOM OF HYDROGEN, OR A RADICAL ALKYL CC, PROVIDED THAT R CANNOT REPRESENT HYDROGEN IF AB 0; -R HAVING VARIOUS MEANINGS. THE INVENTION ALSO CONCERNS TWO METHODS FOR PREPARING THE COMPOUNDS OF FORMULA II AS WELL AS MEDICINAL AND COSMETIC COMPOSITIONS CONTAINING THE SAID COMPOUNDS. |