申请人:Takeda Chemical Industries, Ltd.
公开号:US04329460A1
公开(公告)日:1982-05-11
New derivatives of the formula: ##STR1## (wherein X is O or NH; R.sub.1 is --OH which may optionally be etherified or esterified, etherified mercapto or --NH.sub.2 which may optionally be substituted; R.sub.2 and R.sub.3, respectively, mean H, lower alkyl or ##STR2## and Y is an esterified or amidated carboxyl group, or CN). These derivatives are produced, by fluorination of corresponding 1,2,3,4-tetrahydro-2,4-dioxopyrimidine compounds and can be converted into 5-fluorouracil derivatives under hydrolytic conditions. The new derivatives are able to prolong the lives of animals having carcinomas or have antiviral activity.
新公式的衍生物:##STR1##(其中X为O或NH;R.sub.1为--OH,可以选择醚化或酯化,醚化巯基或--NH.sub.2,可以选择取代;R.sub.2和R.sub.3分别表示H,较低的烷基或##STR2##,Y为酯化或酰胺化的羧基,或CN)。这些衍生物是通过对应的1,2,3,4-四氢-2,4-二氧基嘧啶化合物的氟化而产生的,并且可以在水解条件下转化为5-氟尿嘧啶衍生物。这些新衍生物能够延长患有癌症的动物或具有抗病毒活性的动物的寿命。