申请人:Beecham Group p.l.c.
公开号:EP0405748A1
公开(公告)日:1991-01-02
The (R)-isomer or the (S)-isomer of a compound of formula (IA), optionally in admixture with up to 45% of the mixture by weight of the corresponding (S)-isomer or the (R)-isomer respectively:
wherein
R₁¹ is hydroxy or amino;
R₂¹ is amino or hydrogen;
R₃¹ is hydroxymethyl or acyloxymethyl; and
R₄ is a group of formula:
wherein
R₅ and R₆ are independently selected from hydrogen, C₁₋₆ alkyl and optionally substituted phenyl; or
R₃ and R₄ together are:
wherein
R₆ is as defined above;
having antiviral activity, a process for their preparation and their use in the treatment of viral infections or neoplastic diseases.
化合物的(R)-异构体或(S)-异构体,其化学式为(IA),可以与相应的(S)-异构体或(R)-异构体混合物以不超过45%的重量混合:其中R₁¹为羟基或氨基;R₂¹为氨基或氢;R₃¹为羟甲基或酰氧甲基;且R₄为以下式的基团:其中R₅和R₆分别独立选择氢、C₁₋₆烷基和可选取代的苯基;或R₃和R₄一起为:其中R₆如上定义;具有抗病毒活性,其制备方法及在治疗病毒感染或肿瘤性疾病中的应用。