C20'-urea derivatives of Vinca alkaloids

摘要

A vinca alkaloid compound that is substituted at the 20'-position with a urea or thiourea group is disclosed. The urea's proximal nitrogen atom bonded to the 20'-position carbon atom is secondary, whereas the distal nitrogen atom can be unsubstituted only when the compound contains an optionally present 10'-fluoro substituent, and is otherwise preferably mono- or di-substituted. Methods of preparing the compounds are disclosed as are compositions for their use and methods of treatment using a compound.