Pentapeptide compounds are disclosed. The compounds have biological activity, e.g., cytotoxicity. Prodrugs having targeting groups and pentapeptide moieities, as well as precursors thereof are also disclosed. For example, precursors having a reactive linker that can serve as a reaction site for joining...http://www.google.fr/patents/US7098308?utm_source=gb-gplus-shareBrevet US7098308 - Pentapeptide compounds and uses related thereto
