STEROID DERIVATIVES AND USE THEREOF AS MEDICAMENTS

摘要

The invention concerns the field of chemistry and, more particularly, the field of organic chemistry. The invention specifically relates to novel A-nor steroids according to general formula (I) in which R represents hydrogen, a lower alkyl radical having 1 to 7 carbon atoms, a lower cycloalkyl radical having 3 to 7 carbon atoms, an aryl radical having 5 to 10 carbon atoms, an arylalkyl radical in which the alkyl group has 1 to 6 carbon atoms, or an acyl radical derived from an aliphatic carboxylic acid, from a cycloalkyl carboxylic acid or from an aryl carboxylic acid. The invention also relates to pharmaceutical compositions containing, as an active substance, at least one compound of general formula (I) in association or mixed with an excipient or an appropriate vehicle. The inventive pharmaceutical compositions can also contain another active substance that having a similar or synergetic action. The compounds of general formula (I) are used as medicaments that aid in fixing calcium by osteoblasts.