1. Antivirals and antiviral strategies
2. One effect of the additional substitution at the anomeric position is to change the numbering system, both forpsico-nucleosides and hydantocidin, when compared to simple nucleosides. The numbering throughout this review is shown on the structures of angustmycin and hydantocidin. In addition, α and β are used to describe the position of the base (in angustmycin) or a nitrogen atom or nitrogen residue that could be used to form the base (angustmycin) or spiro ring (hydantocidin)