Inhibitors of cyclophilins and uses thereof

A compound having formula (I-bis):

• wherein:
• R1 is selected from the group consisting of H, alkyl groups, and aralkyl groups, said alkyl or aralkyl groups being possibly substituted;
• R2 is a group of formula NR3R4 or OR5, wherein R3 and R4 are independently selected from the group consisting of H, ORa, alkyl groups, aralkyl groups, and aryl groups, Ra being selected from the group consisting of H, alkyl groups, aryl groups, and aralkyl groups, wherein R3 and R4 may form, together with the nitrogen atom carrying them, a heterocyclyl group comprising from 5 to 20 atoms, possibly substituted, and R5 is selected from the group consisting of alkyl groups, aryl groups, and aralkyl groups, wherein R5 may form together with the oxygen atom carrying it, a heterocyclyl group from 5 to 20 atoms, possibly substituted;
• A is CH or N, or A is C and form, together with R1 and R2 and CO, a heterocyclyl group comprising from 5 to 20 atoms, possibly substituted;
• X is CO, SO2, or CS;
• R6 is H or an alkyl group, or may form together with R2 a heterocyclyl group from 20 to 30 atoms, or may form together with R1 a heterocyclyl group from 10 to 30 atoms;
• and
• R7 is chosen from the group consisting of aryl groups and heteroaryl groups comprising 5 or 6 ring atoms, substituted by at least one NH2 group,
• or their pharmaceutically acceptable salts, hydrates or hydrated salts or its polymorphic crystalline structures, racemates, diastereomers or enantiomers, with the exclusion of the following compounds: