The present invention relates compounds according to Formula (I) wherein R1 and R2 are independently H or an optionally substituted group selected from an alkyl, a heteroalkyl, an aryl, a heteroaryl, an arylalkyl, and a heteroarylalkyl, and R3 and R4 taken together form a carbonyl (&boxH；O)； or wherein R1 and R2 are independently H or an optionally substituted group selected from an alkyl, a heteroalkyl, an aryl, a heteroaryl, an arylalkyl, and a heteroarylalkyl, R3 is H and R4 is H or &mdash；OR5, wherein R5 is H or an optionally substituted group selected from an alkyl, a heteroalkyl, an aryl, a heteroaryl, an arylalkyl, and a heteroarylalkyl； or pharmaceutically acceptable salts or esters thereof, for use in the treatment of kidney disease, in particular in the treatment of acute kidney injury. The present invention also relates to methods of treatment of the same and methods of kidney transplant surgery and coronary artery bypass graft surgery using the compounds of Formula (I).
