5-fluorouracil analogs investigated in this study include a combination of uracil and ftorafur ( uft ) , ethyl ( +/- ) -t-butoxy-5-fluoro-hexahydro-2 , 4-dioxopyrimidine r-5-carboxylate ( tac-278 ) , and 5'-deoxy-5-fluorouridine ( 5'-dfur ) .
C0016360
5-fluorouracil
C0041917
uracil