申请人:Yamasa Shuyu Kabushiki Kaisha
公开号:US05446031A1
公开(公告)日:1995-08-29
The present invention relates to a novel 1-.beta.-D-arabinofuranosyl-(E)-5-(2-halogenovinyl)uracil derivative represented by the following formula (I), whose concentration in blood as XVAU can be kept high for many hours when it is administered orally. The present invention also relates to an antiviral agent comprising as an active ingredient the compound of the present invention. Further, the present invention relates to a method for treating viral diseases which comprises administering to a patient with a viral disease a safe and effective amount of the compound of the present invention. ##STR1## wherein X represents a halogen; and R.sup.1, R.sup.2, and R.sup.3, which may be the same or different, each represent a hydrogen atom, a lower alkyl group or an aralkyl group, provided that R.sup.1, R.sup.2 and R.sup.3 are not hydrogen at the same time.
本发明涉及一种新型的1-β-D-阿拉比呋喃糖基-(E)-5-(2-卤代乙烯基)尿嘧啶衍生物,其化学式如下(I),当口服时,其在血液中的浓度可以保持多小时的高水平。本发明还涉及一种包含该化合物作为活性成分的抗病毒剂。此外,本发明还涉及一种治疗病毒性疾病的方法,包括向患有病毒性疾病的患者施用本发明化合物的安全有效量。其中,X代表卤素;R1、R2和R3可以相同或不同,分别代表氢原子、低碳基或芳基烷基,但不得同时为氢。