| abstract |
Derivatives of general formula (I): in which : R₁ and R₂ each represent a hydrogen atom or form, with the nitrogen and oxygen which carry them, a - O - CO - N link, W represents a halogen atom or an alkyl or lower alkoxy group optionally substituted by one or more halogen atoms such as trifluoromethyl, and m being between 0 and 3, A is a linear or branched alkyl radical comprising from 1 to 6 carbon atoms, R₃ and R₄ defined in the description. Drug. |