This invention relates to single enantiomers of novel cis-substituted 1,3-oxathiolanes, of formula (I) wherein R1 is hydrogen, and R2 is cytosine or 5-fluorocytosine, and pharmaceutically acceptable salts and esters thereof. This invention also relates to pharmaceutical compositions containing them and to the use of these compounds as antiviral agents, particularly in combination therapy.
本发明涉及新型顺式取代的 1,3-氧
硫杂
环戊烷的单一对映体(式 (I) 其中 R1 为氢,R2 为
胞嘧啶或 5-
氟胞嘧啶)及其药学上可接受的盐和酯。本发明还涉及含有这些化合物的药物组合物,以及这些化合物作为抗病毒剂的用途,特别是在联合治疗中的用途。