The present invention is directed to compounds having formula (I): A-L-R1, wherein A is an anticancer agent comprising at least one group selected from the group comprising OH, NH and NH2 and L is a direct bond or L is a linker and R1 is a sulfonamide, sulfamate or sulfamide group. L is substituted on O of OH or on N of NH or NH2 of A or wherein L replaces OH of A, or O-L replaces a C(=O)-OH group of A and wherein in the case L is a direct bond R1 is substituted on O of OH or on N of NH or NH2 of A or wherein R1 replaces OH of A, or O-R1 replaces a C(=O)-OH group of A. The invention is also directed to a treatment of cancer with the compounds.