申请人:Takeda Chemical Industries, Ltd.
公开号:US04190656A1
公开(公告)日:1980-02-26
New compounds of the formula ##STR1## (wherein R.sub.1 represents a lower alkyl group: and ##STR2## represents an alkylidene radical in which at least one of R.sub.2 and R.sub.3 is a lower alkyl which may optionally be substituted by phenyl, phenyl or a 5- or 6-membered aromatic ring including S, N or O, and the remainder, if any, is hydrogen; or a cycloalkylidene radical of up to six carbon atoms, to which a benzene ring may optionally be fused). These compounds are produced by reacting the corresponding 6-acyloxy compounds with a compound of the formula ##STR3## The new compounds have antiviral activity and are useful to prolong the life spans of tumor-bearing animals.
公式为##STR1##的新化合物(其中R.sub.1代表较低的烷基基团;和##STR2##代表一种烷基烯基基团,其中R.sub.2和R.sub.3中至少一个是较低的烷基,可以选择地被苯基、苯基或含有S、N或O的5-或6-成员芳香环取代,其余部分(如果有)为氢;或者最多含有六个碳原子的环烷基烯基基团,其中苯环可以选择地融合)。这些化合物是通过将相应的6-酰氧化合物与公式##STR3##的化合物反应而产生的。这些新化合物具有抗病毒活性,并可用于延长携带肿瘤的动物的寿命。