definiens: shall mean any prescription pha rmaceutical product other than the Licensed Products that ( a ) contains Decitabine or a pro - drug of Decitabine as the active ingredient ( unless the pro - drug is an active ingredient in a pharmaceutical product that is being marketed as of the Effective Date of this Agreement ), or ( b ) is an ester, phosphate, solvate, hydrate or t automer of Decitabine ( except for pharmaceutical pr oducts containing one or more polynucleosides or polynucle otides comprising at least one base of Decitabine ), or ( c ) are Decitabine Metabolites ( except for pharmaceuti cal products that are approved for uses outside of the field of hematological diseases and hematopoiet ic disorders ) ; in each of ( b ) and ( c ) so long as the active ingred ient of such pharmaceutical product remains Decitab ine or an active Decitabine Metabolite