The present invention relates to novel phosphonoamidate prodrugs. The invention also relates to the use of these novel phosphonate-modified nucleosides to treat or prevent viral infections and their use to manufacture a medicine to treat or prevent viral infections, particularly infections with viruses such as the herpes simplex virus 1, herpes simplex virus 2, human cytomegalovirus, varicella zoster virus, vaccinia virus and adenovirus.
                            本发明涉及新型膦酰酰胺原药。本发明还涉及使用这些新型
膦酸盐修饰的核苷来治疗或预防病毒感染,以及使用它们来制造治疗或预防病毒感染的药物,特别是单纯疱疹病毒 1、单纯疱疹病毒 2、人类巨细胞病毒、
水痘带状疱疹病毒、疫苗病毒和腺病毒等病毒感染。