1-O-octadecylethanediol-CDV 3-((2S)-3-Hydroxy-2-{[(2-octadecyloxyethoxy)(hydroxyphosphoryl)]methoxy}propyl)-6-amino-3-hydropyrimidin-2-one AIDS-104905 AIDS104905 ODE-CDV Octadecyloxyethyl-cidofovir