7,12-Dihydro-7,12-dioxo-benz[a]anthracene derivatives (I) are new. 7,12-Dihydro-7,12-dioxo-benz[a]anthracene derivatives of formula (I) and their tautomers, enantiomers, prodrugs and salts are new. R1>COOR, CONH2, CONHR or CONRR; R : 1-3C alkyl; R2>1-2C alkyl or CH(CH3)CO...