申请人:Fuji Kagaku Kogyo Kabushiki Kaisha
公开号:US04340728A1
公开(公告)日:1982-07-20
New nucleoside derivatives possessing strong anti-tumor activity with low toxicity, represented by the general formula: ##STR1## wherein (A-CO-- is a residue of a saturated straight or branched chain fatty acid, B is a nitrogen-containing group, Q is a substituent of the fatty acid, Z and Z' each is H or OH with the proviso that both of Z and Z' are not OH, and n is zero or an integer of at least 1, as well as physiologically acceptable salts thereof. These nucleoside derivatives are prepared by introducing the nitrogen-containing acyl group directly in one step or indirectly in two steps into the 5'-position of 5-fluorouridine, 2'-deoxy-5-fluorouridine or 1-.beta.-D-arabinofuranosyl-5-fluorouracil and splitting off any protective group and optionally converting the free compound into a physiologically acceptable salt thereof or vice versa.
具有强烈抗肿瘤活性且低毒性的新型核苷衍生物,其通用公式为:##STR1## 其中,(A-CO--是饱和直链或支链脂肪酸的残基,B是含氮基团,Q是脂肪酸的取代基,Z和Z'各自为H或OH,但Z和Z'不能同时为OH,n为0或至少为1的整数,以及它们的生理可接受盐。这些核苷衍生物通过将含氮酰基直接一步或间接两步引入5-氟尿嘧啶、2'-脱氧-5-氟尿嘧啶或1-β-D-阿拉伯呋喃糖基-5-氟尿嘧啶的5'-位,并裂解任何保护基团,可选择地将自由化合物转化为其生理可接受的盐,或者反之亦然。