The invention relates to compounds of formula (I): where X+Y=keto, or X=OH and Y=H, or X+Y=oxime or methyloxime, B=OH and C+D=H, or C+D=C1-C4 linear or branched alkyl, or C=H and D=C1-C4 linear or branched alkyl, or B+C=keto and D=methyl, hydroxyl, or methylamino, or B and C=H and D=methylamino, or B+C=oxime and D=methyl and R=C1-C10 linear or branched alkyl, the salts, esters, or salts of esters thereof as medicament, in particular as neuroprotectors, novel compounds of formula (I) and pharmaceutical compositions.