List of Contributors. Preface (E. De Clercq). From D- to L-nucleoside analogs as antiviral agents (J.G. Graciet, R.F. Schinazi). Orally bioavailable acyclic nucleoside phosphonate prodrugs: adefovir dipivoxil and BIS(POC)PMPA (M.N. Arimilli et al.). HEPT: from an investigation of lithiation of nucleosides towards a rational design of non-nucleoside reverse transcriptase inhibitors of HIV-1 (H. Tanaka et al.). Sialidase inhibitors as anti-influenza drugs (M. von Itzstein, J.C. Dyason). Bicyclam derivatives as HIV inhibitors (G.J. Bridger, R.T. Skerlj). Index.