this inhibition is completely prevented by uracil , deoxyuridine , and 5-bromouracil , partly prevented ( 40 to 90 % of growth observed without 5-fluorouracil ) by uridine , thymidine , and 5-bromodeoxyuridine , and slightly prevented by trifluorothymine , cytosine , cytidine , deoxycytidine , and 5-methylcytosine ( all at 0.5 to 1 mm ) .
C0041917
uracil
C0016360
fluorouracil