AIDS-082150 AIDS082150 Thiophosphoric acid O-[5-(6-amino-purin-9-yl)-4-fluoro-2-hydroxymethyl-tetrahydro-furan-3-yl] ester O'-({dibutylamino-[2-(4-nitro-phenyl)-ethoxy]-purin-9-yl}-dihydroxy-tetrahydro-furan-2-ylmethyl) ester