Abstract: The present disclosure describes compositions comprising substantially pure ribitol, pharmaceutical compositions of ribitol, and methods of making ribitol. The methods may include combining a reducing agent (e.g., borohydride) and ribose (e.g. D-ribose), optionally with stirring, to form a first reaction mixture; and contacting the first reaction mixture and an acidic quenching agent, optionally with stirring, to form a second reaction mixture, thereby forming ribitol.

Abstract: The invention provides compounds, compositions, and methods for inhibiting apoptosis and for the treatment of conditions related thereto.

Abstract: The present invention features peptides, peptidomimetics and methods of their use for binding to Inhibitor of Apoptosis Proteins (IAPs) in cells and prevents the IAP's from exerting their apoptosis-suppressing function with caspases in the cell. An IAP binding cargo molecule having a binding portion mimicking the structural and biological features of the Smac amino-terminal tetrapeptide that is capable of relieving XIAP-mediated suppression of apoptosis in mammalian cells, and a cargo portion with a functional group having a detectable property or therapeutic function is disclosed.