| abstract |
Compound of general formula I: <IMAGE> (I) in which: A is a single or double bond, R1 and R3, which may be identical or different, are each a hydrogen atom, an alkoxycarbonylmethylene radical of formula -CH2CO2R4 (in which R4 denotes an alkyl radical having 1 to 5 carbon atoms) or a radical of formula W: <IMAGE> (in which n is equal to 0 or 1 and R5, R6 and R7, which may be identical or different, are each a hydrogen or halogen atom, a hydroxyl radical, a trifluoromethyl radical, a lower alkyl radical containing 1 to 5 carbon atoms or an alkoxy radical containing 1 to 5 carbon atoms), R2 is a hydrogen atom, an alkoxycarbonylmethylene radical of formula -CH2CO2R4, a radical of formula W, or a beta -glucose or rutinose molecule linked to the oxygen to which it is attached with a glycoside bond, on condition, however, that at least either R1 or R2 or R3 always denotes a radical of formula W, and their addition salts with a pharmaceutically acceptable inorganic or organic acid. |