| 摘要 |
PURPOSE:Fluoropyrimidine derivatives of formula I(X is O, NH;R1 is OH or SH, etherified or not etherified, amino which may be substituted;R2 and R3 are H, lower alkyl, 2-tetrahydrofuryl, Y is esterified or amidated carboxyl, CN), e.g. methyl-5-fluoro-6-hydroxy-1,2,3,4,5,6-hexahydro-2,4-dioxopyrimidine-5c arboxylate. |
