2'3'-dideoxy-4'-thioribonucleosides useful as antiviral agents in the treatment and prevention of AIDS are disclosed. In accordance with one aspect of the invention there are provided compounds of the formula ##STR1## where X=H, N.sub.3 or F, and B is a member selected from the group consisting of pyrimidine, 5-azapyrimidine, 6-azapyrimidine, 3-deazapyrimidine, purine, 3-deazapurine, 7-deazapurine, 8-azapurine, and 2-azapurine bases. The intermediate 1-O-acetyl-5-O-t-butyldiphenylsilyl-4-thio-2,3-dideoxyribofuranose useful in the production of certain of the 2',3'-dideoxy-4'-thioribonucleosides is also disclosed.
披露了作为抗病毒剂在治疗和预防艾滋病中有用的2'3'-二去氧-4'-
硫核苷。根据本发明的一个方面,提供了下式化合物:##STR1## 其中X=H、N.sub.3或F,B是从
嘧啶、5-氮杂
嘧啶、6-氮杂
嘧啶、3-去氮杂
嘧啶、
嘌呤、3-去氮杂
嘌呤、7-去氮杂
嘌呤、8-氮杂
嘌呤和2-氮杂
嘌呤碱基组成的群中选择的成员。还披露了用于生产某些2'3'-二去氧-4'-
硫核苷的中间体1-O-乙酰基-5-O-t-丁基二苯基
硅基-4-
硫-2,3-二去氧
核糖呋喃糖。