Use of Tricyclic 1,4-dihydro-1,4-dioxo-1h-naphthalene derivatives, resulting novel compounds and therapeutical use thereof

The invention concerns che therapeutic use of tri salts and their pharmaceutically acceptable salts having the general formula: in which: A is either a sulfur atom, an oxygen atom, or an R3N radical where R3 is a hydrogen atom, a Cj-Cj alkyl radical, or a substituted or unsubstituted aromatic ring, or a substituted or unsubsticuted heteroaromatic ring. R, is either a C-C5 alkyl radical, or an R,NH radical where R4 is a hydrogen atom, a C-C5 alkyl radical, or a substituted or unsubstituted aromatic ring, or a substituted or unsubstituted heteroaromatic ring, or an aromatic ring that may or may not be substituted by one or more acceptor or donor groups, or a heteroaromatic ring having one or more heteroatoms, which may or may not be substituted by acceptor or dcnor groups. R2 is a hydrogen acorn, halogen atom, a C.-C5 alkyl radical, an oxygen atom that may or may not be substituted by a C:-CS alkyl radical, or an NRiR5 radical where R5 and R5. are, independently of each other, a hydrogen atom, an oxygen atom or monovalent C-CS organic radicals.