The invention relates to diazo bicyclic Smac mimetics that are tethered through a covalent linker to give a bivalent species. Bivalent diazo bicyclic Smac mimetics function as inhibitors of Inhibitor of Apoptosis Proteins (IAPs). The invention also relates to the use of bivalent diazo bicyclic Smac mimetics for inducing or sensitizing cells to the induction of apoptotic cell death. Thus, compounds of the invention are useful in the treatment, amelioration, or prevention of hyperproliferative diseases such as cancer.
