申请人:MERCK & CO. INC.
公开号:EP0381531A2
公开(公告)日:1990-08-08
Disclosed are compounds of the formula:
wherein B is related to one of the heterocyclic bases found in nucleic acid (DNA, RNA) such as a purine, a substituted purine, a pyrimidine or a substituted pyrimidine wherein the substituents on the purine or pyrimidine are selected from amino, hydroxyl, halogen, thio or alkylthiol wherein the alkyl moiety of the alkylthiol has 1 to 6 carbons; R¹ is fluorine, chlorine, hydroxy, alkoxy having 1 to 6 carbons or a phosphate group having the formula:
wherein R⁴ and R⁵ are pharmaceutically acceptable cations; R² and R³ are independently hydroxy, alkoxy having 1 to 6 carbons or a phosphate group having the formula:
wherein R⁴ and R⁵ hydrogen or are pharmaceutically acceptable cations; or two of R¹, R² and R³ taken together form a phosphate group having the formula:
wherein R⁴ is hydrogen or a pharmaceutically acceptable cation. The compounds have antiviral activity. They are particularly effective against the herpes group of viruses with special utility against cytomegalovirus (CMV) and varicella-zoster virus (VZV), and against retroviruses such as HTLV-III.
公开了式中的化合物:
其中 B 与核酸(DNA、RNA)中的杂环碱基之一有关,如嘌呤、取代的嘌呤、嘧啶或取代的嘧啶,其中嘌呤或嘧啶上的取代基选自氨基、羟基、卤素、硫代或烷基硫醇,其中烷基硫醇的烷基具有 1 至 6 个碳原子;R¹ 是氟、氯、羟基、具有 1 至 6 个碳原子的烷氧基或具有以下式子的磷酸基团:
其中 R⁴ 和 R⁵ 是药学上可接受的阳离子;R² 和 R³ 独立地是羟基、具有 1 至 6 个碳原子的烷氧基或具有以下式子的磷酸基团:
其中 R⁴ 和 R⁵ 氢或为药学上可接受的阳离子;或 R¹、R² 和 R³ 中的两个共同形成一个磷酸基团,其式为
其中 R⁴ 为氢或药学上可接受的阳离子。这些化合物具有抗病毒活性。它们对疱疹病毒群特别有效,对巨细胞病毒 (CMV) 和水痘-带状疱疹病毒 (VZV) 以及 HTLV-III 等逆转录病毒特别有效。