Contraceptive activity as well as anti-viral protection can be provided by contraceptive compositions containing a pyrimidine-based nucleoside or nucleotide exhibiting spermicidal or sperm-immobilizing activity. In one example, the active ingredient contains a thymine ring (e.g. AZT) that has 5-halo, 6-alkoxy substitution. Additional improvements in anti-HIV activity for certain AZT derivatives are seen by providing the pentose ring of AZT with aryl phosphate substitution.
避孕组合物可以提供避孕活性以及抗病毒保护,其中包含一种
嘧啶基核苷或核苷酸,具有杀精或固精活性。例如,活性成分包含一个胸腺
嘧啶环(例如AZT),其具有5-卤素,6-烷氧基取代。通过为AZT衍
生物的脱氧
核糖环提供芳基
磷酸酯取代,可以看到某些AZT衍
生物的抗HIV活性的额外改善。