as a preclinical secondary screening trial , the efficacy of a new derivative of 5-fluorouracil , 5'-deoxy-5-fluorouridine ( 5'-dfur ) , on 15 human cancers xenografted serially to nude mice of balb/c background was evaluated in comparison with two other derivatives , tegafur and uft .
C0016360
fluorouracil
C0016778
tegafur