| abstract |
The compounds of formula (I): <IMAGE> in which, R17 and R'17 are such that: - either R17 and R'17 together form a ketone - or R17 represents a hydroxyl radical or an acyloxy radical and R'17 represents a hydrogen atom or an alkyl, alkenyl or alkynyl radical, R3 represents a hydrogen atom, an alkyl radical or an acyl radical, R1 and R2, which may be identical or different, represent - a hydrogen atom, - an alkyl radical, which is optionally substituted, - an acyl radical, - an aryl or aralkyl radical, which is optionally substituted, - an alkyl, aralkyl or arylcarbamoyl radical, which is optionally substituted, - or form, with the nitrogen atom to which they are attached, a saturated heterocycle which may contain a second hetero atom chosen from N, O and S and which may be substituted, - or form a dialkylaminomethylene radical, n is at most equal to 18, and the addition salts of the latter, their preparation, their application as medicaments, the compositions containing them and the new intermediates obtained. |