Abstract: Compounds of formula (I): wherein R1 and R4 are OR7, R2 and R3 are H or OR7, with the proviso that when R2 is OR7 then R3 is H, and when R3 is OR7 then R2 is H; R5 and R6 are independently H, OH, or OR7 with the proviso that when R5 is OH, R6 is not OH; R7 is alkyl, aryl or arylalkyl; the drawing “” represents either a single or a double bond; or pharmaceutically acceptable salt(s) or prodrug(s) thereof. These compounds are useful of treatment, prophylaxis, amelioration, or defense against and/or prevention of hormonal dependent conditions, cancer, and diseases and conditions associated with oxidant stress.

Abstract: Compounds of formula (I): wherein R1 and R4 are OR7, R2 and R3 are H or OR7, with the proviso that when R2 is OR7 then R3 is H, and when R3 is OR7 then R2 is H; R5 and R6 are independently H, OH, or OR7 with the proviso that when R5 is OH, R6 is not OH; R7 is alkyl, aryl or arylalkyl; the drawing “” represents either a single or a double bond; or pharmaceutically acceptable salt(s) or prodrug(s) thereof. These compounds are useful of treatment, prophylaxis, amelioration, or defense against and/or prevention of hormonal dependent conditions, cancer, and diseases and conditions associated with oxidant stress.