| abstract |
Compounds of the general formula <IMAGE> in which R<1> denotes a hydrogen atom or the methyl, ethyl or propyl radical and R<2>, if R<1> denotes a hydrogen atom, denotes an alkenyl radical having 3 to 8 C atoms, which is optionally substituted by 1 to 3 halogen atoms, excluding the 1-methylvinyl radical, or, if R<1> denotes the methyl, ethyl or propyl group, denotes an alkenyl radical having 2 to 8 C atoms, which is optionally substituted by 1 to 3 halogen atoms, and therapeutic compositions which contain these compounds. |