Useful chiral specific boron-containing compounds, such as boronate, boronate esters, boranamines, borane diamines, boranamine thioesters, and boronic mono/di- thioesters, have been prepared. These compounds and compositions containing them are useful as anti-cancer or anti-amyloidosis agents.L'invention concerne des composés chiraux spécifiques à base de bore utiles, de type boronate, esters de boronate, boranamines, borane diamines, thioesters de boranamine et mono/di-thioesters boroniques. Lesdits composés et les compositions les contenant sont utiles en tant qu'anticancéreux ou agents anti-amyloïdose.